US2658338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas turbine housing
Assignee: Individual
•
Filing: 1948-02-21
•
Granted: 1953-11-10
•
Expires: 1968-02-21
Abstract
No abstract record available.
Inventors
- 👤 Leduc Rene
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:46
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/42; F23R3/52; F02; F02C; F02C3/00; F02C3/04; F02C3/045; F02C6/00; F02C6/20; F02C7/00; F02C7/04; F04; F04D; F04D25/00; F04D25/02; F04D25/04; F04D25/045; F04D29/00; F04D29/40; F04D29/42; F04D29/44; F04D29/441
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1926225A
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US2609141A
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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) | 1956-11-09 | 1957-05-11 | 1957-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-09 | 1961-05-11 | 1961-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-09 | 1965-05-11 | 1965-11-10 | $7700.00 | Window Closed / Lapsed |