US2431398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Supercharger with controllable inlet
Assignee: RTX Corp
•
Filing: 1944-08-22
•
Granted: 1947-11-25
•
Expires: 1964-08-22
Abstract
No abstract record available.
Inventors
- 👤 Hasbrouck Augustus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/46; F04D29/462; F04D29/464; F02; F02B; F02B33/00; F04D27/00; F04D27/02; F04D27/0253; F02M; F02M2700/00; F02M2700/33; F02M2700/331; F02M2700/335; F05; F05D; F05D2250/00; F05D2250/50; F05D2250/51
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) | 1950-11-24 | 1951-05-26 | 1951-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-24 | 1955-05-26 | 1955-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-24 | 1959-05-26 | 1959-11-25 | $7700.00 | Window Closed / Lapsed |