Patent US4831731A successfully refreshed from Google Patents.
US4831731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple blade safety razor
Assignee: Individual
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Filing: 1988-04-07
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Granted: 1989-05-23
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Expires: 2008-04-07
Abstract
Abstract A manual razor comprises a shaving head and a handle that extends therefrom. The shaving head includes at least two pairs of dual razor blades, each blade having a single shaving edge. The dual blade arrangements are fixedly mounted on the shaving head in a substantially longitudinal manner in order that the shaving edges of all blades are exposed in a common plane. A skin engaging surface is provided between each dual blade arrangement for providing a closer shave.
Inventors
- 👤 Mirel Elits
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:43
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/22
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
79 words
A razor comprising a shaving head and a handle extending therefrom; at least two razor blade arrangements each including a pair of closely spaced-apart substantially parallel razor blades each having a shaving edge; said razor blades being fixedly mounted to the shaving head and extending generally longitudinally thereon for exposing the shaving edges thereof substantially in a common plane, said arrangements being separated by a low friction skin-engaging surface wherein said surface is substantially located in said common plane.
Claim 2
Dependent Claim
79 words
A razor comprising a shaving head and a handle extending therefrom; at least two razor blade arrangements each including a pair of closely spaced-apart substantially parallel razor blades each having a shaving edge; said razor blades being fixedly mounted to the shaving head and extending generally longitudinally thereon for exposing the shaving edges thereof substantially in a common plane, said arrangements being separated by a low friction skin-engaging surface wherein said surface is substantially located in said common plane.
Claim 3
Dependent Claim
45 words
A razor as defined in claim 1, wherein the transverse dimension between an upper edge of said shaving edges of one of said arrangements and a successive lower edge of said shaving edges of an other of said arrangements ranges between 7 and 11 mm.
Claim 4
Dependent Claim
30 words
A razor as defined in claim 1, wherein slots are longitudinally defined in said shaving head adjacent said arrangements for temporarily receiving a mix of severed whiskers, lather and water.
Claim 5
Dependent Claim
35 words
A razor as defined in claim 3, wherein said shaving head comprises baffles transversely extending in said slots from said shaving head towards an internal surface of a lower blade of each of said arrangements.
Claim 6
Dependent Claim
20 words
A razor as defined in claim 1, wherein the shaving head and the handle are made of a moulded plastic.
Claim 7
Dependent Claim
13 words
A razor as defined in claim 5, wherein the moulded plastic is polystyrene.
References Cited (Backward Citations)
US1920711A
Cited
US3934338A
Cited
JPS5215761A
Cited
US4200976A
Cited
US4501066A
Cited
US4720917A
Cited
US4663843A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-05-22 | 1992-11-21 | 1993-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-22 | 1996-11-21 | 1997-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-22 | 2000-11-21 | 2001-05-23 | $7700.00 | Window Closed / Lapsed |