Patent US3501682A successfully refreshed from Google Patents.
US3501682A
Expired / Lapsed
US
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Constant tension-constant speed drive by means of a tandem motor connection
Assignee: RCA Corp
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Filing: 1967-06-26
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Granted: 1970-03-17
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Expires: 1987-06-26
Abstract
No abstract record available.
Inventors
- 👤 George V Jacoby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:18
CPC Classifications
B; B65; B65H; B65H23/00; B65H23/04; B65H23/18; B65H23/1806
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926995A
Cited
US2383360A
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US2578988A
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US2751533A
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US2751532A
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US2837705A
Cited
US3079538A
Cited
US3210629A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |