US3033711A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbo-blast method and unit
Assignee: Boeing Co
•
Filing: 1959-05-25
•
Granted: 1962-05-08
•
Expires: 1979-05-25
Abstract
No abstract record available.
Inventors
- 👤 Howard E Harding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:23
CPC Classifications
F; F01; F01D; F01D25/00; F01D25/002; B; B24; B24C; B24C3/00; B24C3/32; B24C5/00; B24C5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US577006A
Cited
US828361A
Cited
US2278206A
Cited
US2421806A
Cited
US2622047A
Cited
GB682868A
Cited
GB789930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |