US2977161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antifriction bearing and method of operation
Assignee: Motors Liquidation Co
•
Filing: 1954-11-23
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Granted: 1961-03-28
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Expires: 1974-11-23
Abstract
No abstract record available.
Inventors
- 👤 Leland D Cobb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:37
CPC Classifications
F; F16; F16C; F16C37/00; F16C37/007; F16C33/00; F16C33/30; F16C33/38; F16C33/3837; F16C33/3862; F16C33/66; F16C33/6637; F16C33/6659; F16C33/6662; F16C33/6696; F16C19/00; F16C19/02; F16C19/04; F16C19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
NL66206C
Cited
FR635757A
Cited
US1769736A
Cited
US1915287A
Cited
US2160418A
Cited
US2280659A
Cited
GB592947A
Cited
US2474072A
Cited
US2697645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |