Patent US3012720A successfully refreshed from Google Patents.
US3012720A
Expired / Lapsed
US
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Gear tooth counter
Assignee: Unisys Corp
•
Filing: 1958-12-15
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Granted: 1961-12-12
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Expires: 1978-12-15
Abstract
No abstract record available.
Inventors
- 👤 Rappaport Sigmund
- 👤 Stuber Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:08
CPC Classifications
G; G06; G06M; G06M1/00; G06M1/08; G06M1/10; B; B23; B23F; B23F23/00; B23F23/12; B23F23/1218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA463417A
Cited
US1084632A
Cited
US2656106A
Cited
US2470926A
Cited
US2685082A
Cited
US2789445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |