US2625791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coal pulverization and combustion apparatus for gas turbine power plants
Assignee: Bituminous Coal Research Inc
•
Filing: 1947-07-29
•
Granted: 1953-01-20
•
Expires: 1967-07-29
Abstract
No abstract record available.
Inventors
- 👤 John I Yellott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:13
CPC Classifications
F; F23; F23C; F23C3/00; F23C3/006; F23C3/008; B; B60; B60L; B60L50/00; B60L50/10; F23K; F23K1/00; B60L2200/00; B60L2200/26; F23K2201/00; F23K2201/10; F23K2201/1006; Y; Y02; Y02T; Y02T10/00; Y02T10/60; Y02T10/70; Y02T10/7072
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR391315A
Cited
US730782A
Cited
US1163650A
Cited
US1197456A
Cited
US1591679A
Cited
US1455392A
Cited
US1628609A
Cited
US1468008A
Cited
US1559170A
Cited
US1618808A
Cited
US1627766A
Cited
GB413697A
Cited
US2103453A
Cited
US2055385A
Cited
US2140991A
Cited
US2039890A
Cited
GB484289A
Cited
GB541845A
Cited
US2616252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-20 | 1956-07-21 | 1957-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-20 | 1960-07-21 | 1961-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-20 | 1964-07-21 | 1965-01-20 | $7700.00 | Window Closed / Lapsed |