US3053186A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage hydraulic pumps
Assignee: Individual
•
Filing: 1959-06-24
•
Granted: 1962-09-11
•
Expires: 1979-06-24
Abstract
No abstract record available.
Inventors
- 👤 John T Gondek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:12
CPC Classifications
F; F04; F04C; F04C14/00; F04C14/02; F04B; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/106
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB305328A
Cited
FR703569A
Cited
FR954077A
Cited
US2549897A
Cited
US2715875A
Cited
US2643613A
Cited
US2812771A
Cited
GB781204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-10 | 1966-03-12 | 1966-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-10 | 1970-03-12 | 1970-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-10 | 1974-03-12 | 1974-09-11 | $7700.00 | Window Closed / Lapsed |