US2465823A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotor brake
Assignee: American Steel Foundries
•
Filing: 1945-02-16
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Granted: 1949-03-29
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Expires: 1965-02-16
Abstract
No abstract record available.
Inventors
- 👤 Carl E Tack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:49
CPC Classifications
B; B61; B61H; B61H5/00; F; F16; F16D; F16D55/00; F16D55/02; F16D55/22; F16D55/224; F16D55/2245
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US546609A
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US863420A
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US970378A
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US2136447A
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US2170112A
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US2253268A
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US2274859A
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US2274860A
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US2334024A
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US2345016A
Cited
US2365460A
Cited
US2399071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |