US2560233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication system
Assignee: Oil Well Supply Co
•
Filing: 1946-05-15
•
Granted: 1951-07-10
•
Expires: 1966-05-15
Abstract
No abstract record available.
Inventors
- 👤 August R Maier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:17
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/0434; F16H57/0456; F16H9/00; F16H9/02; F16H9/24; F16N; F16N7/00; F16N7/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1429466A
Cited
GB321997A
Cited
US2046092A
Cited
US2053542A
Cited
US2049234A
Cited
US2235793A
Cited
US2302948A
Cited
US2335557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-09 | 1955-01-08 | 1955-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-09 | 1959-01-08 | 1959-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-09 | 1963-01-08 | 1963-07-10 | $7700.00 | Window Closed / Lapsed |