US2902707A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Program control for soot blowers
Assignee: Blaw Knox Co
•
Filing: 1954-06-01
•
Granted: 1959-09-08
•
Expires: 1974-06-01
Abstract
No abstract record available.
Inventors
- 👤 Jr Henry P Bearer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:23
CPC Classifications
F; F28; F28G; F28G15/00; F28G15/04; H; H01; H01H; H01H43/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB491915A
Cited
GB529306A
Cited
GB529598A
Cited
US2396422A
Cited
GB597779A
Cited
GB669388A
Cited
GB651553A
Cited
US2579983A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |