US3349646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor blade sharpening device
Assignee: Individual
•
Filing: 1966-05-20
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Granted: 1967-10-31
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Expires: 1986-05-20
Abstract
No abstract record available.
Inventors
- 👤 Siess Otto
- 👤 Walter E Brach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:55
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24B3/48; B24D; B24D15/00; B24D15/06; B24D15/08; B24D15/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
A RAZOR BLADE SHARPENING DEVICE, COMPRISING, IN COMBINATION: A BASE, A PAIR OF UPRIGHT OPPOSITELY-DISPOSED PLATES ATTACHED AT THEIR BOTTOMS TO SAID BASE AND EACH HAVING BALL MOUNTING MEANS, A PAIR OF SPHERICAL BODIES MOUNTED IN SAID MOUNTING MEANS OPPOSITE EACH OTHER AND IN TIGHTLY PRESSING AND LATERALLY OFFSET RELATION, A MOUNTING ARM HAVING RAZOR BLADE MOUNTING MEANS DISPOSED AT ONE END IN SHARPENING POSITION ABOVE SAID SPHERICAL BODIES, RECIPROCATING MEANS ATTACHED TO THE OTHER END OF SAID MOUNTING ARM TO RECIPROCATE SAID BLADE-CARRYING ARM OVER SAID SPHERICAL BODIES, AND SPRING TENSION MEANS ATTACHED TO SAID MOUNTING ARM IN ORDER TO IMPRESS PRESSURE UPON A RAZOR BLADE EDGE BEING SHARPENED BETWEEN SAID SPHERICAL BODIES.
Claim 2
Dependent Claim
114 words
A RAZOR BLADE SHARPENING DEVICE, COMPRISING, IN COMBINATION: A BASE, A PAIR OF UPRIGHT OPPOSITELY-DISPOSED PLATES ATTACHED AT THEIR BOTTOMS TO SAID BASE AND EACH HAVING BALL MOUNTING MEANS, A PAIR OF SPHERICAL BODIES MOUNTED IN SAID MOUNTING MEANS OPPOSITE EACH OTHER AND IN TIGHTLY PRESSING AND LATERALLY OFFSET RELATION, A MOUNTING ARM HAVING RAZOR BLADE MOUNTING MEANS DISPOSED AT ONE END IN SHARPENING POSITION ABOVE SAID SPHERICAL BODIES, RECIPROCATING MEANS ATTACHED TO THE OTHER END OF SAID MOUNTING ARM TO RECIPROCATE SAID BLADE-CARRYING ARM OVER SAID SPHERICAL BODIES, AND SPRING TENSION MEANS ATTACHED TO SAID MOUNTING ARM IN ORDER TO IMPRESS PRESSURE UPON A RAZOR BLADE EDGE BEING SHARPENED BETWEEN SAID SPHERICAL BODIES.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |