US2391221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple pump
Assignee: Individual
•
Filing: 1944-07-04
•
Granted: 1945-12-18
•
Expires: 1964-07-04
Abstract
No abstract record available.
Inventors
- 👤 Beeh Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:36
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/0404; F04B1/0408; F02; F02M; F02M41/00; F02M41/16; F02M63/00; F02M69/00; F02M69/02; F02M69/14; F02M69/147; F04B1/10; F04B1/107; F04B1/1071; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; F04B23/12; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/85978; Y10T137/86115; Y10T137/86123
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) | 1948-12-17 | 1949-06-18 | 1949-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-12-17 | 1953-06-18 | 1953-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-12-17 | 1957-06-18 | 1957-12-18 | $7700.00 | Window Closed / Lapsed |