US2789788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic jack
Assignee: K R WILSON Inc
•
Filing: 1955-02-08
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Granted: 1957-04-23
•
Expires: 1975-02-08
Abstract
No abstract record available.
Inventors
- 👤 Frank C Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:35
CPC Classifications
B; B66; B66F; B66F5/00; B66F5/04; Y; Y10; Y10T; Y10T74/00; Y10T74/15; Y10T74/1558; Y10T74/21; Y10T74/2133
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB582188A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-22 | 1960-10-22 | 1961-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-22 | 1964-10-22 | 1965-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-22 | 1968-10-22 | 1969-04-23 | $7700.00 | Window Closed / Lapsed |