US1489636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump-operating means
Assignee: Individual
•
Filing: 1922-08-17
•
Granted: 1924-04-08
•
Expires: 1942-08-17
Abstract
No abstract record available.
Inventors
- 👤 Barney F Gilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:36
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/12; F04B1/128; F04B1/122; F04B1/124; F04B1/126; F04B1/14; F04B1/16; F04B49/00; F04B49/20; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-04-08 | 1927-10-08 | 1928-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-04-08 | 1931-10-08 | 1932-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-04-08 | 1935-10-08 | 1936-04-08 | $7700.00 | Window Closed / Lapsed |