Patent US3284228A successfully refreshed from Google Patents.
US3460656A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Missed engagement control
Assignee: Twin Disc Inc
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Filing: 1968-01-24
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Granted: 1969-08-12
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Expires: 1988-01-24
Abstract
No abstract record available.
Inventors
- 👤 James P Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
F; F16; F16D; F16D48/00; F16D48/06; F16D48/064; F16D48/062; F16D2500/00; F16D2500/10; F16D2500/104; F16D2500/10443; F16D2500/1045; F16D2500/10462; F16D2500/11; F16D2500/1105; F16D2500/30; F16D2500/316; F16D2500/3166; F16D2500/50; F16D2500/506; F16D2500/50638; F16D2500/51; F16D2500/5104; F16D2500/5108; F16D2500/5114; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19014; Y10T74/19219; Y10T74/19284
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) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |