Patent US4063357A successfully refreshed from Google Patents.
US4063357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razors
Assignee: Gillette Co LLC
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Filing: 1977-01-28
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Granted: 1977-12-20
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Expires: 1997-01-28
Abstract
Abstract A shaving unit comprises a narrow single edged blade strip and a frame having a support portion having a flat surface to which the blade is permanently secured over its full length.
Inventors
- 👤 John Frederick Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:01
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/4068; B26B21/08; B26B21/14; B26B21/22; B26B21/54; B26B21/56
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
111 words
A shaving unit comprising narrow elongated blade means having cutting edge means thereon, and substantially rigid frame means including a thin elongated wire-like front portion, a thin elongated back portion, said front and back portions being parallel to each other and being joined by thin elongated end portions, said front, back and end portions defining a slot therebetween, said front portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length of said surface and being over its full length adjacent thereto, said cutting edge facing away from said slot, and said cutting edge means projecting clear of said support portion.
Claim 2
Dependent Claim
111 words
A shaving unit comprising narrow elongated blade means having cutting edge means thereon, and substantially rigid frame means including a thin elongated wire-like front portion, a thin elongated back portion, said front and back portions being parallel to each other and being joined by thin elongated end portions, said front, back and end portions defining a slot therebetween, said front portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length of said surface and being over its full length adjacent thereto, said cutting edge facing away from said slot, and said cutting edge means projecting clear of said support portion.
Claim 3
Dependent Claim
28 words
A shaving unit is accordance with claim 1 in which said frame means is of metal and said blade means is secured to said frame means by welding.
Claim 4
Dependent Claim
24 words
A shaving unit in accordance with claim 1 in which said support portion has a width less than the width of said blade means.
Claim 5
Dependent Claim
34 words
The invention according to claim 3 in which said wire-like front portion has a thickness perpendicular to the plane of the frame of about 0.024 inch and a transverse dimension greater than said thickness.
Claim 6
Dependent Claim
15 words
The invention according to claim 4 in which said transverse dimension is about 0.034 inch.
Claim 7
Dependent Claim
18 words
The invention according to claim 5 in which said blade means has a width of about 0.040 inch.
Claim 8
Dependent Claim
32 words
The invention according to claim 6 in which said blade means is provided with portions at either end thereof of greater width than the width of the remainder of said blade means.
Claim 9
Dependent Claim
23 words
The invention according to claim 7 in which said blade means end portions are secured to said end portions of said frame means.
References Cited (Backward Citations)
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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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |