US2951398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydro-kinetic variable speed controller
Assignee: Barnes and Reinecke Inc
•
Filing: 1956-11-15
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Granted: 1960-09-06
•
Expires: 1976-11-15
Abstract
No abstract record available.
Inventors
- 👤 Frank A Glomb
- 👤 Frank J Acton
- 👤 Enrico P Mercanti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:26
CPC Classifications
F; F16; F16H; F16H47/00; F16H47/06; F16H47/08; F16H47/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1873200A
Cited
GB423187A
Cited
US2292482A
Cited
US2361105A
Cited
US2595628A
Cited
US2707539A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |