US1980404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary pump
Assignee: HARMAN PACIFIC Co
•
Filing: 1932-03-19
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Granted: 1934-11-13
•
Expires: 1952-03-19
Abstract
No abstract record available.
Inventors
- 👤 Gerald J Harman
- 👤 Arthur M Briggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:38
CPC Classifications
F; F04; F04C; F04C14/00; F04C2/00; F04C2/30; F04C2/34; F04C2/344; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283; Y10T137/7504; Y10T137/7613; Y10T137/7722; Y10T137/7837; Y10T137/7876; Y10T137/7877; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/1816; Y10T74/21; Y10T74/2101; Y10T74/22
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) | 1937-11-12 | 1938-05-14 | 1938-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-11-12 | 1942-05-14 | 1942-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-11-12 | 1946-05-14 | 1946-11-13 | $7700.00 | Window Closed / Lapsed |