US2911910A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting assembly
Assignee: EIDP Inc
•
Filing: 1956-08-08
•
Granted: 1959-11-10
•
Expires: 1976-08-08
Abstract
No abstract record available.
Inventors
- 👤 Jr Richard F Welsh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:22
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/087
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191503133A
Cited
DE440273C
Cited
US1549510A
Cited
US1600940A
Cited
US1775347A
Cited
US2099669A
Cited
US2260008A
Cited
US2416077A
Cited
GB737255A
Cited
FR1095005A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |