Patent US3437188A successfully refreshed from Google Patents.
US3437188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric speed control system for a fluid operated disc clutch
Assignee: Gillett Tool Co Inc
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Filing: 1967-05-03
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Granted: 1969-04-08
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Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Emile David Long
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:02
CPC Classifications
H; H02; H02P; H02P29/00; H02P29/0016; H02P29/0027; F; F16; F16D; F16D48/00; F16D48/06; F16D48/066; F16D2500/00; F16D2500/10; F16D2500/102; F16D2500/1028; F16D2500/30; F16D2500/304; F16D2500/3042; F16D2500/30426; F16D2500/50; F16D2500/52; F16D2500/525; F16D2500/70; F16D2500/704; F16D2500/70402; F16D2500/70406; F16D2500/7042; F16D2500/706; F16D2500/7061
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) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |