US2791091A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power plant cooling and thrust balancing systems
Assignee: Motors Liquidation Co
•
Filing: 1950-05-15
•
Granted: 1957-05-07
•
Expires: 1970-05-15
Abstract
No abstract record available.
Inventors
- 👤 John B Wheatley
- 👤 Otakar P Prachar
- 👤 Arthur W Gaubatz
- 👤 Donald G Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:36
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/02; F01D5/08; F01D5/081; F01D5/084; F01D3/00; F02; F02C; F02C7/00; F02C7/12; F02C7/16; F02C7/18; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |