US2968255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pumps
Assignee: DEMPSTER MILL Manufacturing Co
•
Filing: 1958-01-31
•
Granted: 1961-01-17
•
Expires: 1978-01-31
Abstract
No abstract record available.
Inventors
- 👤 Herman M Loeber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:41
CPC Classifications
F; F04; F04B; F04B15/00; F04B15/06; F04B15/08; F04B53/00; F04B53/06; F04B53/10; F04B53/102; F04B53/103; F04B7/00; F04B7/02; F04B7/0266; F04B7/0275
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2458230A
Cited
US2647538A
Cited
US2696785A
Cited
US2761391A
Cited
US2771846A
Cited
US2811108A
Cited
US2836119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |