US2947956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid cooled energy transmission control device
Assignee: Bomac Laboratories Inc
•
Filing: 1957-07-03
•
Granted: 1960-08-02
•
Expires: 1977-07-03
Abstract
No abstract record available.
Inventors
- 👤 Herbert C Alexander
- 👤 Heins Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:04
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/10; H01P1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1196474A
Cited
US2519795A
Cited
US2884603A
Cited
US2710932A
Cited
US2884602A
Cited
US2879487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |