US3478238A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indexed motor control device
Assignee: Coffee-Mat Corp
•
Filing: 1967-11-17
•
Granted: 1969-11-11
•
Expires: 1987-11-17
Abstract
No abstract record available.
Inventors
- 👤 David Herman
- 👤 Sollie W Small
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:45
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/10; H02K7/112; H02K7/102; H02K7/1021; H02K7/1026
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2351997A
Cited
US2575442A
Cited
US2539836A
Cited
US3219858A
Cited
US3344292A
Cited
US3392811A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-10 | 1973-05-12 | 1973-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-10 | 1977-05-12 | 1977-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-10 | 1981-05-12 | 1981-11-11 | $7700.00 | Window Closed / Lapsed |