Patent US2685347A successfully refreshed from Google Patents.
US2685347A
Expired / Lapsed
US
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Method of cleaning lubricant chambers and the lubricant therein
Assignee: Individual
•
Filing: 1951-03-26
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Granted: 1954-08-03
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Expires: 1971-03-26
Abstract
No abstract record available.
Inventors
- 👤 Marvin L Busby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:29
CPC Classifications
F; F16; F16N; F16N33/00
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) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |