US2722210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick change upper cylinder and valve lubricator
Assignee: Individual
•
Filing: 1953-02-27
•
Granted: 1955-11-01
•
Expires: 1973-02-27
Abstract
No abstract record available.
Inventors
- 👤 James W Koonce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:05
CPC Classifications
F; F16; F16N; F16N7/00; F16N7/02; F16N7/10; F01; F01M; F01M3/00; F01M3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1635563A
Cited
US1600404A
Cited
US2114459A
Cited
US1998164A
Cited
US2049541A
Cited
US2644430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-10-31 | 1959-05-02 | 1959-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-10-31 | 1963-05-02 | 1963-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-10-31 | 1967-05-02 | 1967-11-01 | $7700.00 | Window Closed / Lapsed |