US2914266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-adjusting variable speed drive
Assignee: Individual
•
Filing: 1955-02-28
•
Granted: 1959-11-24
•
Expires: 1975-02-28
Abstract
No abstract record available.
Inventors
- 👤 Lawrence H Connell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:52
CPC Classifications
G; G11; G11B; G11B15/00; G11B15/18; G11B15/43; G03; G03B; G03B19/00; G03B19/18; G11B15/26; G11B15/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1384357A
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GB313672A
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US1981370A
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GB363549A
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US2634064A
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US2576459A
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US2468198A
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US2609998A
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US2603425A
Cited
US2907632A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |