US2123391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump
Assignee: Individual
•
Filing: 1935-04-15
•
Granted: 1938-07-12
•
Expires: 1955-04-15
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Whitfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:21
CPC Classifications
F; F04; F04B; F04B27/00; F04B27/04; F04B27/06; F04B27/065; F04B27/0657; F04B1/00; F04B1/04; F04B1/06; F04B1/07; F04B27/0404; F04B27/0446; F04B39/00; F04B39/06; F04B39/064; F04B49/00; F04B49/12; F04B49/123; F04B49/125; F04B49/126
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1941-07-11 | 1942-01-10 | 1942-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-07-11 | 1946-01-10 | 1946-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-07-11 | 1950-01-10 | 1950-07-12 | $7700.00 | Window Closed / Lapsed |