US2620733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic fluid mechanism
Assignee: Individual
•
Filing: 1946-06-19
•
Granted: 1952-12-09
•
Expires: 1966-06-19
Abstract
No abstract record available.
Inventors
- 👤 John W Overbeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:33
CPC Classifications
F; F01; F01B; F01B1/00; F01B1/06; F01B1/0641; F01B1/0672; F04; F04B; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; F01B13/00; F01B13/04; F01B13/06; F01B13/061; F03; F03C; F03C1/00; F03C1/02; F03C1/04; F03C1/0403; F03C1/0435; F03C1/0444; F04B23/14; F04D; F04D9/00; F04D9/04; F04D9/043; Y; Y10; Y10S; Y10S277/00; Y10S277/91; Y10S277/911; Y10S277/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |