US2362420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vane pump
Assignee: Hydraulic Development Corp Inc
•
Filing: 1941-12-17
•
Granted: 1944-11-07
•
Expires: 1961-12-17
Abstract
No abstract record available.
Inventors
- 👤 Warren R Tucker
- 👤 George A Waldie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:17
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/18; F04C14/22; F04C14/223; F01; F01C; F01C21/00; F01C21/08; F01C21/0809; F01C21/0818; F01C21/0854; F01C21/0863
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) | 1947-11-07 | 1948-05-08 | 1948-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-11-07 | 1952-05-08 | 1952-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-11-07 | 1956-05-08 | 1956-11-07 | $7700.00 | Window Closed / Lapsed |