US2874809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotation controlling device
Assignee: General Time Corp
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Filing: 1957-05-17
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Granted: 1959-02-24
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Expires: 1977-05-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur B Poole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:43
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/118; H02K7/1185; G; G04; G04C; G04C15/00; G04C15/0009; G04C15/0045; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19874; Y10T74/20; Y10T74/20576; Y10T74/20636; Y10T74/20654
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) | 1962-02-23 | 1962-08-25 | 1963-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-23 | 1966-08-25 | 1967-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-23 | 1970-08-25 | 1971-02-24 | $7700.00 | Window Closed / Lapsed |