US3064573A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Blasting assembly
Assignee: Hercules Powder Co
•
Filing: 1956-07-13
•
Granted: 1962-11-20
•
Expires: 1976-07-13
Abstract
No abstract record available.
Inventors
- 👤 Jr David R Blair
- 👤 Homer W Coleman
- 👤 John R Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:03
CPC Classifications
F; F42; F42B; F42B3/00; F42B3/26
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |