US2665641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump, pressure loaded, with differential valve
Assignee: Borg Warner Corp
•
Filing: 1949-06-18
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Granted: 1954-01-12
•
Expires: 1969-06-18
Abstract
No abstract record available.
Inventors
- 👤 Lauck John Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:08
CPC Classifications
F; F03; F03C; F03C2/00; F03C2/08; F04; F04C; F04C2/00; F04C2/08; F04C2/12; F04C2/14; F04C15/00; F04C15/0003; F04C15/0023; F04C15/0026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2202913A
Cited
US2346761A
Cited
US2391072A
Cited
US2437791A
Cited
US2444165A
Cited
US2470355A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |