US3447979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gelled nitric acid blasting composition and method of preparing same
Assignee: Zeneca Inc
•
Filing: 1966-12-23
•
Granted: 1969-06-03
•
Expires: 1986-12-23
Abstract
No abstract record available.
Inventors
- 👤 Harold F Bluhm
- 👤 Neil E Gehrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:45
CPC Classifications
C; C06; C06B; C06B47/00; C06B47/14; Y; Y10; Y10S; Y10S149/00; Y10S149/118
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |