US4535537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disposable plastic razor
Assignee: Warner Lambert Co LLC
•
Filing: 1984-09-12
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Granted: 1985-08-20
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Expires: 2004-09-12
Abstract
Abstract A low-cost plastic disposable razor having a plurality of paths for purging the razor of shaving debris.
Inventors
- 👤 Frank A. Ferraro
- 👤 David S. Byrne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:04
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/22; B26B21/222; B26B21/02; B26B21/06; B26B21/40; B26B21/4012
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
91 words
A one-piece plastic razor cartridge comprising a blade support including a face-engaging guard bar, a plurality of spaced posts projecting from said support, a perforated blade having a cutting edge disposed upon said support so that said posts project through mating perforations and said cutting edge projects toward said guard bar, each post terminating in a predetermined configuration so as to develop collectively a contoured face-engaging surface which in combination with said guard bar and blade develop optimum blade edge geometry and means for securing the blade to the blade support.
Claim 2
Dependent Claim
91 words
A one-piece plastic razor cartridge comprising a blade support including a face-engaging guard bar, a plurality of spaced posts projecting from said support, a perforated blade having a cutting edge disposed upon said support so that said posts project through mating perforations and said cutting edge projects toward said guard bar, each post terminating in a predetermined configuration so as to develop collectively a contoured face-engaging surface which in combination with said guard bar and blade develop optimum blade edge geometry and means for securing the blade to the blade support.
Claim 3
Dependent Claim
49 words
The razor of claim 1 in which selected posts are formed with spaced, aligned offsets or shoulders creating a second blade support for a second perforated blade, said posts project through mating perforations in said second blade and means for securing said second blade to said second blade support.
Claim 4
Dependent Claim
24 words
The razor of claim 1 or 2 including a handle formed integrally with the cartridge to define with said supports a one-piece unitary assembly.
Claim 5
Dependent Claim
55 words
The razor of claim 2 in which there are three paths for purging the razor of shaving debris, a first path defined by vertical spacing between blades, a second path defined by gaps between face-engaging portions of the posts, and a third path defined by elongated slots between the guard bar and the blade edges.
Claim 6
Dependent Claim
32 words
The razor of claim 1 or 2 in which the means for securing blades to their respective blade supports is a portion of selected posts obtained by upsetting or deforming the posts.
References Cited (Backward Citations)
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US2952910A
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US3052023A
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US4016648A
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US4069580A
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US4403413A
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US4486952A
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US4443939A
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US4501066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-19 | 1989-02-18 | 1989-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-19 | 1993-02-18 | 1993-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-19 | 1997-02-18 | 1997-08-20 | $7700.00 | Window Closed / Lapsed |