Patent US2770140A successfully refreshed from Google Patents.
US2770140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cam mechanism
Assignee: Individual
•
Filing: 1953-11-27
•
Granted: 1956-11-13
•
Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Vincent E Palumbo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:09
CPC Classifications
F; F02; F02B; F02B75/00; F02B75/28; F01; F01B; F01B9/00; F01B9/04; F01B9/06; F02B75/02; F02B2075/022; F02B2075/025; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/21; Y10T74/2101; Y10T74/2107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1183470A
Cited
US1352985A
Cited
US1445686A
Cited
GB264893A
Cited
US1757778A
Cited
US1808083A
Cited
US1772531A
Cited
US1913730A
Cited
US1930297A
Cited
US2118804A
Cited
GB431237A
Cited
FR796660A
Cited
US2133842A
Cited
US2220609A
Cited
US2353313A
Cited
US2445902A
Cited
US2514728A
Cited
US2598122A
Cited
US2567576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |