Patent US2662800A successfully refreshed from Google Patents.
US2662800A
Expired / Lapsed
US
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Transmission
Assignee: Individual
•
Filing: 1951-04-07
•
Granted: 1953-12-15
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Expires: 1971-04-07
Abstract
No abstract record available.
Inventors
- 👤 Roscoe C Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:10
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/02; F16H57/031; F16H57/021; F16H57/022; F16H2057/02039; F16H2057/02043; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19242
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2408899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |