US3068802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constant prime rapid recovery pump
Assignee: Individual
•
Filing: 1961-03-01
•
Granted: 1962-12-18
•
Expires: 1981-03-01
Abstract
No abstract record available.
Inventors
- 👤 Raymond F Costello
- 👤 O'brian Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:57
CPC Classifications
F; F04; F04D; F04D9/00; F04D9/004; F04D9/005; F04D9/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734460A
Cited
US2100365A
Cited
US1909517A
Cited
US2057634A
Cited
US2041586A
Cited
US2174960A
Cited
US2247654A
Cited
GB558841A
Cited
US2394932A
Cited
US2416590A
Cited
US2442135A
Cited
US2451030A
Cited
US2496870A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-17 | 1966-06-18 | 1966-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-17 | 1970-06-18 | 1970-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-17 | 1974-06-18 | 1974-12-18 | $7700.00 | Window Closed / Lapsed |