US2688923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar energy pump
Assignee: Individual
•
Filing: 1951-11-05
•
Granted: 1954-09-14
•
Expires: 1971-11-05
Abstract
No abstract record available.
Inventors
- 👤 Filiberto A Bonaventura
- 👤 Donald E Plympton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:13
CPC Classifications
F; F04; F04B; F04B43/00; F04B43/02; F04B43/025; F04B43/026; F03; F03G; F03G6/00; F03G6/06; F03G6/062; F03G6/065; F04B17/00; F04B17/006; F04B43/06; F04B9/00; F04B9/08; F04B9/12; F24; F24S; F24S23/00; F24S23/70; F24S23/71; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y02E10/46
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2461032A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |