US2319682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soot blower
Assignee: VULCAN SOOT BLOWER Corp
•
Filing: 1940-08-14
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Granted: 1943-05-18
•
Expires: 1960-08-14
Abstract
No abstract record available.
Inventors
- 👤 De Los E Hibner
- 👤 Fred C Arey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:48
CPC Classifications
F; F28; F28G; F28G3/00; F28G3/16; F28G3/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-05-17 | 1946-11-16 | 1947-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-05-17 | 1950-11-16 | 1951-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-05-17 | 1954-11-16 | 1955-05-18 | $7700.00 | Window Closed / Lapsed |