US2845809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pre-loaded gear
Assignee: University of California Berkeley
•
Filing: 1955-02-17
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Granted: 1958-08-05
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Expires: 1975-02-17
Abstract
No abstract record available.
Inventors
- 👤 George F Hetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:46
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/17; F16H55/18; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49462; Y10T29/49464; Y10T29/49826; Y10T29/49893; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19898
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |