Patent US3681293A successfully refreshed from Google Patents.
US2879733A
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US
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Lubrication systems
Assignee: Merrow Machine Co
•
Filing: 1951-11-21
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Granted: 1959-03-31
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Expires: 1971-11-21
Abstract
No abstract record available.
Inventors
- 👤 Bernard N Pierce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:40
CPC Classifications
D; D05; D05B; D05B71/00; D05B73/00; D05B73/04; D05B73/12; D05B85/00; D05B85/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1312412A
Cited
US1200881A
Cited
US1331638A
Cited
US1420082A
Cited
US1634123A
Cited
US1698241A
Cited
US1594274A
Cited
US1741454A
Cited
US1877823A
Cited
US1983631A
Cited
US2134903A
Cited
US2145825A
Cited
US2085814A
Cited
US2188003A
Cited
US2190254A
Cited
US2206285A
Cited
US2263786A
Cited
US2325928A
Cited
US2238796A
Cited
US2247127A
Cited
US2202817A
Cited
US2345992A
Cited
US2311604A
Cited
US2430369A
Cited
FR932408A
Cited
US2505330A
Cited
US2511047A
Cited
US2584243A
Cited
US2596728A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-30 | 1962-09-29 | 1963-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-30 | 1966-09-29 | 1967-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-30 | 1970-09-29 | 1971-03-31 | $7700.00 | Window Closed / Lapsed |