US2851952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pumps
Assignee: Individual
•
Filing: 1957-06-27
•
Granted: 1958-09-16
•
Expires: 1977-06-27
Abstract
No abstract record available.
Inventors
- 👤 Lane Edwin Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
F; F04; F04B; F04B1/00; F04B1/04; F04B1/06; F04B1/07; F04B1/053; F04B1/0536; F04B1/0538; F04B23/00; F04B23/04; F04B23/08; F04B23/10; F04B23/103; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US886047A
Cited
US1719693A
Cited
US2172103A
Cited
US2327787A
Cited
US2605707A
Cited
US2642804A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |