US2484439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic pump
Assignee: EW Bliss Co Inc
•
Filing: 1943-07-16
•
Granted: 1949-10-11
•
Expires: 1963-07-16
Abstract
No abstract record available.
Inventors
- 👤 Larkin R Williamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:06
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/02; F04B9/04; F04B9/042; F04B49/00; F04B49/02; F04B49/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2390762A
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US2277134A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-10 | 1953-04-11 | 1953-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-10 | 1957-04-11 | 1957-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-10 | 1961-04-11 | 1961-10-11 | $7700.00 | Window Closed / Lapsed |