US2469000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve-actuating lever
Assignee: CRAMPTON Manufacturing CO
•
Filing: 1946-07-22
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Granted: 1949-05-03
•
Expires: 1966-07-22
Abstract
No abstract record available.
Inventors
- 👤 Herman E Pleasant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:54
CPC Classifications
E; E03; E03D; E03D5/00; E03D5/02; E03D5/09; E03D5/092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2358471A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-05-02 | 1952-11-01 | 1953-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-05-02 | 1956-11-01 | 1957-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-05-02 | 1960-11-01 | 1961-05-03 | $7700.00 | Window Closed / Lapsed |