Patent US4587729A successfully refreshed from Google Patents.
US4587729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razor
Assignee: Gillette Co LLC
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Filing: 1984-10-15
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Granted: 1986-05-13
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Expires: 2004-10-15
Abstract
Abstract A safety razor including a blade assembly and a handle assembly, the blade assembly including a blade having a cutting edge disposed between skin engaging elements adapted in operation to engage a surface being shaved ahead and behind, respectively, of the cutting edge, the blade being movable relative to the elements in response to forces encountered during a shaving operation, the blade assembly being pivotally mounted on the handle assembly whereby the blade assembly, as a whole, is pivotally movable on the handle assembly in response to forces encountered during the shaving operation, one of the skin engaging elements being provided with a water leachable shaving aid.
Inventors
- 👤 Chester F. Jacobson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:30
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/52; B26B21/521; B26B21/08; B26B21/14; B26B21/22; B26B21/222; B26B21/225; B26B21/227; B26B21/4012; B26B21/4018
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
237 words
A safety razor including a blade assembly and a handle assembly, said blade assembly comprising a body portion of molded plastic, first and second blades mounted on said body portion between skin engaging elements adapted in operation to engage a surface being shaved ahead and behind, respectively, of said blades, said blades each being independently movable relative to said elements in response to forces encountered during a shaving operation, one of said skin-engaging elements comprising a guard portion independently movable during said shaving operation, one of said skin-engaging elements having thereon a shaving aid formed of a hydrophobic material and a water leachable hydrophilic polymeric material, spring finger biasing means integral with said body portion and exercising a bias against said guard portion and said first and second blades, said blade assembly having pivot mounting means thereon and an underside cam portion, said handle assembly comprising a grip portion, a head portion at one end of said grip portion, complemental pivot mounting means on said head portion comprising shell bearing means adapted to receive said blade assembly pivot mounting means, whereby said blade assembly, as a whole, is pivotally movable on said handle assembly in response to forces reciprocally movable in said head portion to engage said underside cam portion of said blade assembly to exercise a bias on said blade assembly and thereby urge said blade assembly to a given position on said shell bearing means.
Claim 2
Dependent Claim
237 words
A safety razor including a blade assembly and a handle assembly, said blade assembly comprising a body portion of molded plastic, first and second blades mounted on said body portion between skin engaging elements adapted in operation to engage a surface being shaved ahead and behind, respectively, of said blades, said blades each being independently movable relative to said elements in response to forces encountered during a shaving operation, one of said skin-engaging elements comprising a guard portion independently movable during said shaving operation, one of said skin-engaging elements having thereon a shaving aid formed of a hydrophobic material and a water leachable hydrophilic polymeric material, spring finger biasing means integral with said body portion and exercising a bias against said guard portion and said first and second blades, said blade assembly having pivot mounting means thereon and an underside cam portion, said handle assembly comprising a grip portion, a head portion at one end of said grip portion, complemental pivot mounting means on said head portion comprising shell bearing means adapted to receive said blade assembly pivot mounting means, whereby said blade assembly, as a whole, is pivotally movable on said handle assembly in response to forces reciprocally movable in said head portion to engage said underside cam portion of said blade assembly to exercise a bias on said blade assembly and thereby urge said blade assembly to a given position on said shell bearing means.
Claim 3
Dependent Claim
21 words
A safety razor in accordance with claim 1 in which said shaving aid comprises a member fixed to said skin-engaging element.
Claim 4
Dependent Claim
29 words
A safety razor in accordance with claim 2 in which the skin-engaging element to which said shaving aid member is fixed comprises a cap portion of said blade assembly.
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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) | 1989-05-12 | 1989-11-11 | 1990-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-12 | 1993-11-11 | 1994-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-12 | 1997-11-11 | 1998-05-13 | $7700.00 | Window Closed / Lapsed |