US2437791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump with unloading bushing
Assignee: Borg Warner Corp
•
Filing: 1943-06-26
•
Granted: 1948-03-16
•
Expires: 1963-06-26
Abstract
No abstract record available.
Inventors
- 👤 Jay M Roth
- 👤 John A Lauck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:59
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/24; F04C14/26; F04C14/265; 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)
US974913A
Cited
US1044444A
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US1944648A
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US2021613A
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US2159748A
Cited
US2246951A
Cited
GB537428A
Cited
US2312891A
Cited
US2305971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-16 | 1951-09-15 | 1952-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-16 | 1955-09-15 | 1956-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-16 | 1959-09-15 | 1960-03-16 | $7700.00 | Window Closed / Lapsed |