US2611248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for effecting heat exchange between a rotating solid body and a gaseous medium, particularly for cooling fluid transmissions with rotating casings
Assignee: Svenska Rotor Maskiner AB
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Filing: 1951-05-16
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Granted: 1952-09-23
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Expires: 1971-05-16
Abstract
No abstract record available.
Inventors
- 👤 Ahlen Karl Gustav
- 👤 Odman Tor Axel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:51
CPC Classifications
F; F16; F16H; F16H41/00; F16H41/24; F16H41/30; Y; Y10; Y10S; Y10S60/00; Y10S60/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |