US2069338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: STEPHENS PUMP Co
•
Filing: 1934-05-14
•
Granted: 1937-02-02
•
Expires: 1954-05-14
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Tennant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:05
CPC Classifications
F; F04; F04B; F04B53/00; F04B43/00; F04B43/08; F04B43/10; F04B43/107; F04B53/16; F04B53/162; F04B53/164; Y; Y10; Y10S; Y10S277/00; Y10S277/93
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) | 1940-02-02 | 1940-08-03 | 1941-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-02-02 | 1944-08-03 | 1945-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-02-02 | 1948-08-03 | 1949-02-02 | $7700.00 | Window Closed / Lapsed |