US2625413A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Seal for hydraulic rams
Assignee: Individual
•
Filing: 1948-03-04
•
Granted: 1953-01-13
•
Expires: 1968-03-04
Abstract
No abstract record available.
Inventors
- 👤 Niels A Christensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:06
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/56; B; B30; B30B; B30B15/00; B30B15/0052; Y; Y10; Y10S; Y10S277/00; Y10S277/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1498104A
Cited
US1576341A
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GB224101A
Cited
US1780764A
Cited
FR811703A
Cited
US2410808A
Cited
US2404547A
Cited
US2509672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-13 | 1956-07-14 | 1957-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-13 | 1960-07-14 | 1961-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-13 | 1964-07-14 | 1965-01-13 | $7700.00 | Window Closed / Lapsed |