Patent US4706342A successfully refreshed from Google Patents.
US4706342A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Paper clip
Assignee: Individual
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Filing: 1987-06-05
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Granted: 1987-11-17
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Expires: 2007-06-05
Abstract
Abstract A paper clip formed in one piece comprises: a top member with an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by a joint portion at their front ends, and a web portion integrally connected the top member and the lower portion of the bottom member at their rear ends. The upper portion of the bottom member is confined within the opening of the top member and is located in substantially the same plane as is the top member whenever the clip is not being used. The upper portion of the bottom member is resiliently bendable toward the lower portion, and the top and bottom member are resiliently separable to receive and hold papers between substantially the entire bodies of the top member and the upper portion of the bottom members. The paper clip has a unique characteristic of distributing a uniform clamping force to the top and bottom members by constantly maintaining a parallel relationship between the top member and the upper portion of the bottom member.
Inventors
- 👤 Wen C. Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:07
CPC Classifications
B; B42; B42F; B42F1/00; B42F1/02; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/205; Y10T24/44; Y10T24/44641; Y10T24/44769
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
251 words
A paper clip of resilient material comprising: a top member formed to provide an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by a joint portion at their front ends forming an acute angle therein, the upper portion being shorter than the lower portion and the lower portion being shorter than the top member, and a curved web portion integrally connected the top and bottom members at their rear ends, the opening of the top member and the upper portion of the bottom member being formed to have substantially the same configuration with the opening being proportionally larger than the upper portion of the bottom member, the upper portion of the bottom member being resiliently bendable toward its lower portion and the top and bottom members being resiliently separable to receive and hold the papers between substantially the entire bodies of the top member and the upper portion of the bottom member, the curved web portion and the joint portion being formed in such a manner to firstly permit the upper portion of the bottom member to be confined within the opening of the top member and located in substantially the same plane as is the top member whenever the clip is not being used, and secondly, enable the top member and the upper portion of the bottom member to receive a multiplicity of thickness ranges of papers and firmly and releasably hold them therein by maintaining a substantially parallel to each other relationship.
Claim 2
Dependent Claim
251 words
A paper clip of resilient material comprising: a top member formed to provide an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by a joint portion at their front ends forming an acute angle therein, the upper portion being shorter than the lower portion and the lower portion being shorter than the top member, and a curved web portion integrally connected the top and bottom members at their rear ends, the opening of the top member and the upper portion of the bottom member being formed to have substantially the same configuration with the opening being proportionally larger than the upper portion of the bottom member, the upper portion of the bottom member being resiliently bendable toward its lower portion and the top and bottom members being resiliently separable to receive and hold the papers between substantially the entire bodies of the top member and the upper portion of the bottom member, the curved web portion and the joint portion being formed in such a manner to firstly permit the upper portion of the bottom member to be confined within the opening of the top member and located in substantially the same plane as is the top member whenever the clip is not being used, and secondly, enable the top member and the upper portion of the bottom member to receive a multiplicity of thickness ranges of papers and firmly and releasably hold them therein by maintaining a substantially parallel to each other relationship.
Claim 3
Dependent Claim
251 words
A paper clip of resilient material comprising: a top member formed to provide an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by a joint portion at their front ends forming an acute angle therein, the upper portion being shorter than the lower portion and the lower portion being shorter than the top member, and a flat web portion integrally connected the top and bottom members at their rear ends, the opening of the top member and the upper portion of the bottom member being formed to have substantially the same configuration with the opening being proportionally larger than the upper portion of the bottom member, the upper portion of the bottom member being resiliently bendable toward its lower portion and the top and bottom members being resiliently separable to receive and hold the papers between substantially the entire bodies of the top member and the upper portion of the bottom member, the flat web portion and the joint portion being formed in such a manner to firstly permit the upper portion of the bottom member to be confined within the opening of the top member and located in substantially the same plane as is the top member whenever the clip is not being used, and secondly, enable the top member and the upper portion of the bottom member to receive a multiplicity of thickness ranges of papers and firmly and releasably hold them therein by maintaining a substantially parallel to each other relationship.
Claim 4
Dependent Claim
251 words
A paper clip of resilient material comprising: a top member formed to provide an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by a joint portion at their front ends forming an acute angle therein, the upper portion being shorter than the lower portion and the lower portion being shorter than the top member, and a flat web portion integrally connected the top and bottom members at their rear ends, the opening of the top member and the upper portion of the bottom member being formed to have substantially the same configuration with the opening being proportionally larger than the upper portion of the bottom member, the upper portion of the bottom member being resiliently bendable toward its lower portion and the top and bottom members being resiliently separable to receive and hold the papers between substantially the entire bodies of the top member and the upper portion of the bottom member, the flat web portion and the joint portion being formed in such a manner to firstly permit the upper portion of the bottom member to be confined within the opening of the top member and located in substantially the same plane as is the top member whenever the clip is not being used, and secondly, enable the top member and the upper portion of the bottom member to receive a multiplicity of thickness ranges of papers and firmly and releasably hold them therein by maintaining a substantially parallel to each other relationship.
Claim 5
Dependent Claim
278 words
A paper clip of resilient material comprising: a top member formed to provide an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by an arcuate joint portion at their front ends forming an acute angle therein, the joint portion including an extended V-shapped member above the lower portion and connected to the front end of the upper portion serving as a pivot, the upper portion being shorter than the lower portion and the lower portion being shorter than the top member, and a curved web portion integrally connected the top and bottom members at their rear ends, the opening of the top member and the upper portion of the bottom member being formed to have substantially the same configuration with the opening being proportionally larger than the upper portion of the bottom member, the upper portion of the bottom member being resiliently bendable toward its lower portion and the top and bottom members being resiliently separable to receive and hold the papers between substantially the entire bodies of the top member and the upper portion of the bottom member, the curved web portion and the joint portion being formed in such a manner to firstly permit the upper portion of the bottom member to be confined within the opening of the top member and located in substantially the same plane as is the top member whenever the clip is not being used, and secondly, enable the top member and the upper portion of the bottom member to receive a multiplicity of thickness ranges of papers and firmly and releasably hold them therein by maintaining a substantially parallel to each other relationship.
Claim 6
Dependent Claim
278 words
A paper clip of resilient material comprising: a top member formed to provide an opening, a bottom member having a lower portion and a tilted upper portion integrally connected by an arcuate joint portion at their front ends forming an acute angle therein, the joint portion including an extended V-shapped member above the lower portion and connected to the front end of the upper portion serving as a pivot, the upper portion being shorter than the lower portion and the lower portion being shorter than the top member, and a curved web portion integrally connected the top and bottom members at their rear ends, the opening of the top member and the upper portion of the bottom member being formed to have substantially the same configuration with the opening being proportionally larger than the upper portion of the bottom member, the upper portion of the bottom member being resiliently bendable toward its lower portion and the top and bottom members being resiliently separable to receive and hold the papers between substantially the entire bodies of the top member and the upper portion of the bottom member, the curved web portion and the joint portion being formed in such a manner to firstly permit the upper portion of the bottom member to be confined within the opening of the top member and located in substantially the same plane as is the top member whenever the clip is not being used, and secondly, enable the top member and the upper portion of the bottom member to receive a multiplicity of thickness ranges of papers and firmly and releasably hold them therein by maintaining a substantially parallel to each other relationship.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |