Patent US4939840A successfully refreshed from Google Patents.
US4939840A
Expired / Lapsed
US
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Safety razor
Assignee: Individual
•
Filing: 1989-04-14
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Granted: 1990-07-10
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Expires: 2009-04-14
Abstract
Abstract A safety razor comprises a handle, a blade element movable relative to the handle in a direction which substantially corresponds to the direction of a working stroke, and an elastic element located between the handle and the blade element as considered in this direction.
Inventors
- 👤 Kemal Butka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:41
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/22; B26B21/222; B26B21/227; B26B21/40; B26B21/50
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
153 words
A safety razor, comprising a handle; a blade element movable relative to said handle in a direction which substantially corresponds to the direction of a working stroke of the safety razor during shaving; and an elastic element cooperating with said handle and said blade element and formed as a spring, said spring having one portion fixedly connected with said blade element and another portion acted upon by a force applied to said handle during a shaving stroke, said spring having two opposite ends and at least one bend located therebetween, said blade element having two blades, said one portion being formed by said ends of said spring so that one of said ends of said spring is connected with one of said blades while the other of said ends of the spring is connected with the other of said blades, said other portion acted upon by said handle is formed as said bend.
Claim 2
Dependent Claim
153 words
A safety razor, comprising a handle; a blade element movable relative to said handle in a direction which substantially corresponds to the direction of a working stroke of the safety razor during shaving; and an elastic element cooperating with said handle and said blade element and formed as a spring, said spring having one portion fixedly connected with said blade element and another portion acted upon by a force applied to said handle during a shaving stroke, said spring having two opposite ends and at least one bend located therebetween, said blade element having two blades, said one portion being formed by said ends of said spring so that one of said ends of said spring is connected with one of said blades while the other of said ends of the spring is connected with the other of said blades, said other portion acted upon by said handle is formed as said bend.
Claim 3
Dependent Claim
17 words
A safety razor as defined in claim 1, wherein said bend is fixedly connected with said handle.
Claim 4
Dependent Claim
17 words
A safety razor as defined in claim 1, wherein said bend is movable relative to said handle.
Claim 5
Dependent Claim
125 words
A safety razor, comprising a handle; a blade element movable relative to said handle in a direction which substantially corresponds to the direction of a working stroke of the safety razor during shaving; and an elastic element cooperating with said handle and said blade element and formed as a spring, said spring having a first portion fixedly connected with said blade element and a second portion acted upon by a force applied to said handle during a shaving stroke; and further comprising a sharpening element attachable immovably relative to said handle so as to be in contact with a cutting edge of said blade element so that during said movement of said blade element said cutting edge is sharpened by rubbing against said sharpening element.
Claim 6
Dependent Claim
125 words
A safety razor, comprising a handle; a blade element movable relative to said handle in a direction which substantially corresponds to the direction of a working stroke of the safety razor during shaving; and an elastic element cooperating with said handle and said blade element and formed as a spring, said spring having a first portion fixedly connected with said blade element and a second portion acted upon by a force applied to said handle during a shaving stroke; and further comprising a sharpening element attachable immovably relative to said handle so as to be in contact with a cutting edge of said blade element so that during said movement of said blade element said cutting edge is sharpened by rubbing against said sharpening element.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-07-09 | 1994-01-08 | 1994-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-09 | 1998-01-08 | 1998-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-09 | 2002-01-08 | 2002-07-10 | $7700.00 | Window Closed / Lapsed |