US4084316A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razors
Assignee: Gillette Co LLC
•
Filing: 1976-12-08
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Granted: 1978-04-18
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Expires: 1996-12-08
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
2026-11-03 06:59
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: 13
Claim 1
Independent Claim
147 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and metal housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said frame means including mounting portions retained in said housing by a deformed portion of said housing clamped about said mounting portions.
Claim 2
Dependent Claim
147 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and metal housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said frame means including mounting portions retained in said housing by a deformed portion of said housing clamped about said mounting portions.
Claim 3
Dependent Claim
17 words
A shaving unit in accordance with claim 1 and including a handle unremovably secured to said housing.
Claim 4
Dependent Claim
146 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and plastic housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said frame means including mounting portions retained in said housing means by embedding of said mounting portions in said housing means.
Claim 5
Dependent Claim
146 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and plastic housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said frame means including mounting portions retained in said housing means by embedding of said mounting portions in said housing means.
Claim 6
Dependent Claim
17 words
A shaving unit in accordance with claim 3 and including a handle unremovably secured to said housing.
Claim 7
Dependent Claim
151 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and plastic housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said frame means including mounting portions which are straight and aligned with said support portion, said housing having groove means for retaining said mounting portions therein.
Claim 8
Dependent Claim
151 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and plastic housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said frame means including mounting portions which are straight and aligned with said support portion, said housing having groove means for retaining said mounting portions therein.
Claim 9
Dependent Claim
17 words
A shaving unit in accordance with claim 5 and including a handle unremovably secured to said housing.
Claim 10
Dependent Claim
149 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said housing means further providing coupling means for detachably securing said unit to a handle, said coupling means comprising a tongue projecting from said unit.
Claim 11
Dependent Claim
149 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said housing means further providing coupling means for detachably securing said unit to a handle, said coupling means comprising a tongue projecting from said unit.
Claim 12
Dependent Claim
152 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said housing means further providing coupling means for detachably securing said unit to a handle, said coupling means comprising a pair of channels extending longitudinally of said housing.
Claim 13
Dependent Claim
152 words
A shaving unit comprising narrow elongated blade means having a cutting edge means thereon, frame means including a thin elongated first portion, a thin elongated second portion, said first and second portions being joined by thin elongated end portions, said first, second and end portions defining a slot therebetween, said first portion having a support portion having a substantially flat surface thereon, said blade means being permanently secured over its full length to said surface and being over its full length adjacent thereto, said cutting edge means projecting clear of said support portion, and housing means disposed about said frame means and retaining said frame means and said blade means therein, said housing means providing a guard surface extending parallel to said blade means, said housing means further providing coupling means for detachably securing said unit to a handle, said coupling means comprising a pair of channels extending longitudinally of said housing.
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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) | 1981-04-17 | 1981-10-17 | 1982-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-17 | 1985-10-17 | 1986-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-17 | 1989-10-17 | 1990-04-18 | $7700.00 | Window Closed / Lapsed |