US3597841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razor
Assignee: Individual
•
Filing: 1969-06-11
•
Granted: 1971-08-10
•
Expires: 1989-06-11
Abstract
Abstract A safety razor in which top and bottom cooperating pressure members between which the razor blade is gripped have cooperating outwardly and downwardly extending lips extending between opposite ends. The bottom lip has a uniform radius of curvature. The top lip has a varying radius of curvature, and the top lip is tapered in its width from one end of the razor head to the other. The top lip is arcuate in cross section having different radius of curvature therealong, said radius being at a maximum value at the end of the razor top lip where the lip is narrowest, and having maximum radius of curvature at the opposite end of the razor head where the top lip is widest.
Inventors
- 👤 Benjamin Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:23
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
128 words
In a safety razor: a top member having a flat horizontal center section with at least one linear side, said at least one side having a lip extending outward and downward between opposite ends, said lip having an outer edge disposed at a distance from said linear side which increases from a minimum value adjacent one end to a maximum value adjacent the other end; a bottom member having a like center section with at least one lip extending outward and downward beyond said top member lip outer edge between opposite ends and underlying said top member lip, said bottom member lip having a guard portion disposed parallel to said at least one linear side; and means for gripping a razor blade between said top and bottom members.
Claim 2
Dependent Claim
128 words
In a safety razor: a top member having a flat horizontal center section with at least one linear side, said at least one side having a lip extending outward and downward between opposite ends, said lip having an outer edge disposed at a distance from said linear side which increases from a minimum value adjacent one end to a maximum value adjacent the other end; a bottom member having a like center section with at least one lip extending outward and downward beyond said top member lip outer edge between opposite ends and underlying said top member lip, said bottom member lip having a guard portion disposed parallel to said at least one linear side; and means for gripping a razor blade between said top and bottom members.
Claim 3
Dependent Claim
37 words
A razor as set forth in claim 1 wherein the distance of said outer edge from said at least one linear side increases linearly with increasing distance from said one end of said at least one side.
Claim 4
Dependent Claim
40 words
A razor as set forth in claim 2 wherein said center section is rectangular and wherein said at least one linear side comprises two oppositely disposed sides of said center section each having a lip with similarly disposed outer edges.
Claim 5
Dependent Claim
32 words
A razor as set forth in claim 3 wherein said at least one bottom member lip comprises a lip underlying each of said top member lips and having similarly disposed guard portions.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |