Patent US3728788A successfully refreshed from Google Patents.
US3728788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straight razor adapted for use with injector blades
Assignee: Individual
•
Filing: 1971-08-26
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Granted: 1973-04-24
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Expires: 1991-08-26
Abstract
Abstract A razor of the straight razor type has closely spaced blade shields adjacent one of its ends, and an opening adjacent to but spaced from the blade shields which will receive a key of an injector cartridge with an interference fit, which may use injector blades and receive them directly from their cartridge.
Inventors
- 👤 R Pearson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:36
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
104 words
A razor of the straight razor type comprising a handle connected to a blade holder portion, a shank having a narrow end portion, said shank being interfitted with said blade holder portion to form a blade holder assembly, said blade holder assembly having adjacent one end thereof two closely spaced blade shields parallel to one another and extending vertically from said assembly and an opening adjacent to but spaced from said shields, said opening being adapted to receive with an interference fit a key of a blade injector cartridge, and said blade shields having unobstructed blade inject and blade eject areas adjacent their ends.
Claim 2
Dependent Claim
104 words
A razor of the straight razor type comprising a handle connected to a blade holder portion, a shank having a narrow end portion, said shank being interfitted with said blade holder portion to form a blade holder assembly, said blade holder assembly having adjacent one end thereof two closely spaced blade shields parallel to one another and extending vertically from said assembly and an opening adjacent to but spaced from said shields, said opening being adapted to receive with an interference fit a key of a blade injector cartridge, and said blade shields having unobstructed blade inject and blade eject areas adjacent their ends.
Claim 3
Dependent Claim
77 words
The invention as set forth in claim 1 wherein said blade holder portion has a pair of spaced, parallel legs adjacent one end thereof and has adjacent the other end thereof, a bottom, side walls extending upwardly from said bottom and spaced apart a sufficient distance to receive the narrow end portion of said shank, and inwardly sloped portions integral with said side walls, said blade shields being integral with and extending upwardly from said sloped portions.
Claim 4
Dependent Claim
37 words
The invention set forth in claim 2 wherein said opening for a key of a blade injector cartridge is defined by said blade holder bottom and side walls and the narrow end portion of said shank. >
References Cited (Backward Citations)
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Cited
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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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |