US2857776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead screw selectively operable and releasable under load
Assignee: American Metal Products Co
•
Filing: 1955-01-13
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Granted: 1958-10-28
•
Expires: 1975-01-13
Abstract
No abstract record available.
Inventors
- 👤 Richard J Williams
- 👤 Morris R Steere
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:37
CPC Classifications
F; F16; F16H; F16H35/00; F16H35/10; B; B60; B60N; B60N2/00; B60N2/02; B60N2/0224; B60N2/02246; F16H25/00; F16H25/18; F16H25/20; F16H25/2021; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18568; Y10T74/18576; Y10T74/18688; Y10T74/18696; Y10T74/18704
Claims Analysis
Total Claims: 0
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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) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |