Patent US3500525A successfully refreshed from Google Patents.
US3500525A
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Method of lubricating rolling element bearings
Assignee: National Aeronautics and Space Administration
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Filing: 1967-11-28
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Granted: 1970-03-17
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Expires: 1987-11-28
Abstract
No abstract record available.
Inventors
- 👤 Dean C Glenn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:13
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6696; F16N; F16N17/00; F16N17/06; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2280886A
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US2697645A
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US2893793A
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US2978793A
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US2980987A
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US3001838A
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US3027626A
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US3387985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |