US2907171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combustion chamber inlet for thermal power plants
Assignee: Individual
•
Filing: 1954-02-15
•
Granted: 1959-10-06
•
Expires: 1974-02-15
Abstract
No abstract record available.
Inventors
- 👤 Lysholm Alf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:39
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/02; F23R3/26; F23R3/04; F23R3/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2638745A
Cited
US2581999A
Cited
US2577918A
Cited
US2601000A
Cited
US2658337A
Cited
US2711631A
Cited
US2741090A
Cited
US2716330A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |