US2632456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable ratio controller
Assignee: Individual
•
Filing: 1948-02-21
•
Granted: 1953-03-24
•
Expires: 1968-02-21
Abstract
No abstract record available.
Inventors
- 👤 Harry B Breedlove
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:46
CPC Classifications
G; G05; G05D; G05D11/00; G05D11/02; G05D11/035; Y; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/2278; Y10T137/2409; Y10T137/2496; Y10T137/2499
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2124946A
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US2042374A
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US2125109A
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US2117800A
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US2193095A
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US2125081A
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US2246934A
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US2302326A
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US2272256A
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US2381948A
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US2388669A
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US2410335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-23 | 1956-09-22 | 1957-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-23 | 1960-09-22 | 1961-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-23 | 1964-09-22 | 1965-03-24 | $7700.00 | Window Closed / Lapsed |