US2349022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Laminated gear pump
Assignee: EQUI FLOW Inc
•
Filing: 1941-03-28
•
Granted: 1944-05-16
•
Expires: 1961-03-28
Abstract
No abstract record available.
Inventors
- 👤 Gustave A Ungar
- 👤 Joseph F Keller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:19
CPC Classifications
F; F04; F04C; F04C2/00; F04C2/08; F04C2/082; F04C2/084; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49316; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19916
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) | 1947-05-16 | 1947-11-15 | 1948-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-05-16 | 1951-11-15 | 1952-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-05-16 | 1955-11-15 | 1956-05-16 | $7700.00 | Window Closed / Lapsed |