Patent US4645348A successfully refreshed from Google Patents.
Patent US1598321A successfully refreshed from Google Patents.
US1598321A
Expired / Lapsed
US
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Method of lubricating bearing surfaces
Assignee: Individual
•
Filing: 1921-03-17
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Granted: 1926-08-31
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Expires: 1941-03-17
Abstract
No abstract record available.
Inventors
- 👤 Sherwood Charles Frederic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:30
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/02; F16C33/04; F16C33/06; F16C33/10; F16C33/1025; F16C33/109; F16C32/00; F16C32/06; F16C32/0629
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1929-08-30 | 1930-03-01 | 1930-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1933-08-30 | 1934-03-01 | 1934-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1937-08-30 | 1938-03-01 | 1938-08-31 | $7700.00 | Window Closed / Lapsed |