US2561560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal guided speed responsive device
Assignee: Brown Brockmeyer Co
•
Filing: 1947-10-16
•
Granted: 1951-07-24
•
Expires: 1967-10-16
Abstract
No abstract record available.
Inventors
- 👤 Steffen S Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:09
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/06; H01H35/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US512411A
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US1214286A
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US1397086A
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US1713203A
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US1810633A
Cited
US2003817A
Cited
US2412347A
Cited
US2495617A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-23 | 1955-01-22 | 1955-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-23 | 1959-01-22 | 1959-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-23 | 1963-01-22 | 1963-07-24 | $7700.00 | Window Closed / Lapsed |