Patent CH132846A successfully refreshed from Google Patents.
Patent US4268958A successfully refreshed from Google Patents.
US4268958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for counting the number of shaves for which a razor blade is used
Assignee: Individual
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Filing: 1979-11-01
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Granted: 1981-05-26
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Expires: 1999-11-01
Abstract
Abstract A shaving implement is provided with a plurality of frangible tabs that can be broken off, one at a time, incident to each use of a razor blade for shaving. The user is able to keep track of the extent to which each blade is used, and to discard the blade after an appropriate number of uses.
Inventors
- 👤 Ray Hilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 04:55
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/4081; B26B21/4087; B26B21/4037
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
In a disposable razor having molded plastic handle with front and back surfaces and a blade holder within which a razor blade is captured, the improvement comprising a plurality of separate, manually frangible, thin plastic tabs all having bases and cantilevered tips protruding outwardly from said back surface of said handle at a uniform sloping angle thereto away from said blade holder, and said tabs are arranged in a row along the back surface of said handle with sharp demarkations defined between said bases and said back surface of said handle.
Claim 2
Dependent Claim
91 words
In a disposable razor having molded plastic handle with front and back surfaces and a blade holder within which a razor blade is captured, the improvement comprising a plurality of separate, manually frangible, thin plastic tabs all having bases and cantilevered tips protruding outwardly from said back surface of said handle at a uniform sloping angle thereto away from said blade holder, and said tabs are arranged in a row along the back surface of said handle with sharp demarkations defined between said bases and said back surface of said handle.
Claim 3
Independent Claim
145 words
A method of recording the number of uses of a disposable razor having a molded plastic handle with front and back surfaces and a blade holder within which a razor blade is captured, the improvement comprising a plurality of separate, manually frangible, thin plastic tabs all having bases and cantilevered tips protruding outwardly from said back surface of said handle at a uniform sloping angle thereto away from said blade holder, said tabs being arranged in a row along the back surface of said handle with sharp demarkations defined between said bases and said back surface of said handle, comprising grasping said handle in one hand, positioning the thumb of that hand upon the cantilevered tip of one of said tabs, and exerting pressure with said thumb toward said handle on the tip positioned thereagainst until said tip fractures and breaks away from said handle.
Claim 4
Independent Claim
145 words
A method of recording the number of uses of a disposable razor having a molded plastic handle with front and back surfaces and a blade holder within which a razor blade is captured, the improvement comprising a plurality of separate, manually frangible, thin plastic tabs all having bases and cantilevered tips protruding outwardly from said back surface of said handle at a uniform sloping angle thereto away from said blade holder, said tabs being arranged in a row along the back surface of said handle with sharp demarkations defined between said bases and said back surface of said handle, comprising grasping said handle in one hand, positioning the thumb of that hand upon the cantilevered tip of one of said tabs, and exerting pressure with said thumb toward said handle on the tip positioned thereagainst until said tip fractures and breaks away from said handle.
References Cited (Backward Citations)
US2827872A
Cited
FR2391038A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-05-25 | 1984-11-24 | 1985-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-05-25 | 1988-11-24 | 1989-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-05-25 | 1992-11-24 | 1993-05-26 | $7700.00 | Window Closed / Lapsed |