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Patent US2830457A successfully refreshed from Google Patents.
US2830457A
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Mechanical movement mechanism
Assignee: Motors Liquidation Co
•
Filing: 1953-04-06
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Granted: 1958-04-15
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Expires: 1973-04-06
Abstract
No abstract record available.
Inventors
- 👤 John B Dyer
- 👤 William K Schnepf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:48
CPC Classifications
F; F16; F16H; F16H21/00; F16H21/46; F16H21/52; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18232; Y10T74/18416
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US722095A
Cited
US1591208A
Cited
US2002890A
Cited
US2231474A
Cited
US2557912A
Cited
US2541790A
Cited
CH281842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |