US2875696A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal pumps, in particular for feeding fuel to fuel injection engines
Assignee: Individual
•
Filing: 1952-12-01
•
Granted: 1959-03-03
•
Expires: 1972-12-01
Abstract
No abstract record available.
Inventors
- 👤 Zborowski Helmut Ph G A R Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:44
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/466; F04D29/08; F04D29/086
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US916427A
Cited
GB183107A
Cited
US1771711A
Cited
US1967316A
Cited
US2028783A
Cited
US2209109A
Cited
US2258527A
Cited
GB552902A
Cited
US2427656A
Cited
US2581504A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |