US2641442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Turbine
Assignee: Individual
•
Filing: 1947-05-08
•
Granted: 1953-06-09
•
Expires: 1967-05-08
Abstract
No abstract record available.
Inventors
- 👤 Buchi Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:24
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/30; F01D9/00; F01D9/02; F02; F02C; F02C1/00; F02C1/04; F02C1/05; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F28; F28F; F28F9/00; F28F9/007; F28F9/013; H; H01; H01J; H01J5/00; H01J5/32; H01J5/50; H01J5/54; F05; F05D; F05D2220/00; F05D2220/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US786384A
Cited
US1038295A
Cited
US1180403A
Cited
US1276154A
Cited
US1405565A
Cited
US1310682A
Cited
US1368751A
Cited
US1853133A
Cited
FR678548A
Cited
GB443620A
Cited
US2117131A
Cited
US2165448A
Cited
CH214686A
Cited
US2296703A
Cited
US2487514A
Cited
US2442019A
Cited
US2391786A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |