Patent US2523543A successfully refreshed from Google Patents.
US2523543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable stroke radial pump
Assignee: Individual
•
Filing: 1946-04-29
•
Granted: 1950-09-26
•
Expires: 1966-04-29
Abstract
No abstract record available.
Inventors
- 👤 James E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:24
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/10; F04B1/107; F04B1/1071; F04B1/1072; F04B1/0404; F04B1/0408; F04B1/0439; F04B1/06; F04B1/07; F04B1/08; F04B15/00; F04B15/02; F04B49/00; F04B49/12; F04B49/123; F04B49/128; F04B53/00; F04B53/10; F04B53/102; Y; Y10; Y10S; Y10S417/00; Y10S417/90
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-25 | 1954-03-27 | 1954-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-25 | 1958-03-27 | 1958-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-25 | 1962-03-27 | 1962-09-26 | $7700.00 | Window Closed / Lapsed |