Patent US2845868A successfully refreshed from Google Patents.
US2845868A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gear pump
Assignee: Borg Warner Corp
•
Filing: 1955-01-12
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Granted: 1958-08-05
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Expires: 1975-01-12
Abstract
No abstract record available.
Inventors
- 👤 Francis E Norlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:17
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C14/265; F04C14/02; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2440371A
Cited
US2589067A
Cited
US2505191A
Cited
US2512025A
Cited
US2617477A
Cited
US2617361A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |