Patent US2875696A successfully refreshed from Google Patents.
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 16:48
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
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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 |