Patent US4534110A successfully refreshed from Google Patents.
US4534110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triple-edge safety razor and blade
Assignee: Individual
•
Filing: 1982-12-28
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Granted: 1985-08-13
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Expires: 2002-12-28
Abstract
Abstract A triple-edge safety razor in which no portions thereof are disconnected during use. The razor employs a novel blade assembly wherein three individual strip blades are interconnected by a flexible central web affording hinged connections therebetween. A number of methods of manufacture of the blade assembly are described.
Inventors
- 👤 Henry P. Glass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:45
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/20
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
118 words
A blade assembly for use in a triple-edge safety razor comprising: three individual blades; and a flexible central web interconnecting said blades in triangular relationship, said central web providing a flexible connection between said blades; said triangular blade assembly defining an elongated aperture having an open end at a location adjacent to one apex of said triangular blade assembly and between the ends of a pair of the individual blades and extending substantially through the flexible central interconnecting web to a closed end at substantially the center of said triangular blade assembly to define an open ended notch adapted to permit sliding insertion and removal of the triangular blade assembly from a triple-edge safety razor without disassembly thereof.
Claim 2
Dependent Claim
118 words
A blade assembly for use in a triple-edge safety razor comprising: three individual blades; and a flexible central web interconnecting said blades in triangular relationship, said central web providing a flexible connection between said blades; said triangular blade assembly defining an elongated aperture having an open end at a location adjacent to one apex of said triangular blade assembly and between the ends of a pair of the individual blades and extending substantially through the flexible central interconnecting web to a closed end at substantially the center of said triangular blade assembly to define an open ended notch adapted to permit sliding insertion and removal of the triangular blade assembly from a triple-edge safety razor without disassembly thereof.
Claim 3
Dependent Claim
37 words
A blade assembly according to claim 1 wherein said blades comprise metallic strip blades, and said web comprises a pair of thin layers of plastic film adhered together and to said blades and sandwiching said blades therebetween.
Claim 4
Dependent Claim
40 words
A blade assembly according to claim 2 wherein said web comprises a flexible plastic sheet, said sheet being formed with a score line parallel to the cutting edge of each of said blades to define hinged connections between said blades.
Claim 5
Dependent Claim
40 words
A blade assembly according to claim 3 wherein said metallic blades are formed with openings therethrough, said plastic sheet is formed with bosses thereon, and said plastic sheet is connected to said blades by said bosses extending through said openings.
Claim 6
Dependent Claim
19 words
A blade assembly according to claim 2 wherein said web comprises a thin metallic sheet connected to said blades.
References Cited (Backward Citations)
GB190909905A
Cited
US1573244A
Cited
US1840199A
Cited
US1872721A
Cited
US1938477A
Cited
US1988167A
Cited
US2019475A
Cited
US2361216A
Cited
US2352785A
Cited
US2582913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |