US2231690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pump seal
Assignee: Ford Motor Co
•
Filing: 1938-07-25
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Granted: 1941-02-11
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Expires: 1958-07-25
Abstract
No abstract record available.
Inventors
- 👤 Laurence S Sheldrick
- 👤 Adolph F Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:23
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/08; F04D29/10; F04D29/106; F01; F01P; F01P5/00; F01P5/10; F02; F02F; F02F11/00; F02F11/007; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/38; F02B; F02B75/00; F02B75/02; F02B2075/022; F02B2075/025
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) | 1944-02-11 | 1944-08-12 | 1945-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-11 | 1948-08-12 | 1949-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-11 | 1952-08-12 | 1953-02-11 | $7700.00 | Window Closed / Lapsed |