US2346964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive displacement pump
Assignee: OMEGA MACHINE Co
•
Filing: 1940-08-26
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Granted: 1944-04-18
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Expires: 1960-08-26
Abstract
No abstract record available.
Inventors
- 👤 Lyndus E Harper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:49
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F04B53/1002; F04B43/00; F04B43/02; F04B43/06; F04B43/067; F04B49/00; F04B49/12; F04B53/16; F04B53/162; F04B53/164
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) | 1947-04-18 | 1947-10-18 | 1948-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-18 | 1951-10-18 | 1952-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-18 | 1955-10-18 | 1956-04-18 | $7700.00 | Window Closed / Lapsed |