US3397644A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump
Assignee: BARNES Manufacturing CO
•
Filing: 1966-09-20
•
Granted: 1968-08-20
•
Expires: 1986-09-20
Abstract
No abstract record available.
Inventors
- 👤 Amos M Einerson
- 👤 Harold W Pruner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:25
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/04; F04D29/046; F04D29/047; F04D13/00; F04D13/02; F04D13/06; F04D13/08; F04D13/10; F04D7/00; F04D7/02; F04D7/04; Y; Y10; Y10S; Y10S415/00; Y10S415/901
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1348980A
Cited
US2166404A
Cited
US2197883A
Cited
US2590761A
Cited
US2875697A
Cited
US2815253A
Cited
US2791182A
Cited
US2906567A
Cited
GB888834A
Cited
US3098450A
Cited
US3155045A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-20 | 1972-02-19 | 1972-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-20 | 1976-02-19 | 1976-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-20 | 1980-02-19 | 1980-08-20 | $7700.00 | Window Closed / Lapsed |