US2675676A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulverized fuel gas tuebine
Assignee: —
•
Filing: —
•
Granted: 1954-04-20
•
Expires: 1971-04-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:31
CPC Classifications
F; F02; F02C; F02C3/00; F02C3/20; F02C3/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US551074A
Cited
US1319119A
Cited
US730782A
Cited
US1180792A
Cited
US1771497A
Cited
US1778774A
Cited
US1897478A
Cited
GB413697A
Cited
GB484289A
Cited
US2226923A
Cited
GB541845A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |