Patent US3536621A successfully refreshed from Google Patents.
US3536621A
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Grease compositions for vacuum and for high temperature applications
Assignee: United States Department of the Air Force
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Filing: 1968-01-22
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Granted: 1970-10-27
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Expires: 1988-01-22
Abstract
No abstract record available.
Inventors
- 👤 John B Christian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:17
CPC Classifications
C; C10; C10M; C10M7/00; C10M2201/00; C10M2201/10; C10M2201/102; C10M2215/00; C10M2215/22; C10M2215/221; C10M2215/222; C10M2229/00; C10M2229/04; C10M2229/043; C10M2229/044; C10N; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/02; C10N2050/00; C10N2050/08; C10N2050/10
Claims Analysis
Total Claims: 0
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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) | 1973-10-26 | 1974-04-27 | 1974-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-10-26 | 1978-04-27 | 1978-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-10-26 | 1982-04-27 | 1982-10-27 | $7700.00 | Window Closed / Lapsed |