US2664860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic ram mechanism
Assignee: Keelavite Co Ltd
•
Filing: 1950-10-16
•
Granted: 1954-01-05
•
Expires: 1970-10-16
Abstract
No abstract record available.
Inventors
- 👤 Levetus Francis Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:05
CPC Classifications
B; B26; B26D; B26D5/00; B26D5/08; B26D5/12; B26D1/00; B26D1/01; B26D1/04; B26D1/06; B26D1/08; B26D1/09; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8821; Y10T83/8837; Y10T83/8858; Y10T83/8866
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB618399A
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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) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |