US3264150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Explosive lead azide process
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1963-06-24
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Granted: 1966-08-02
•
Expires: 1983-06-24
Abstract
No abstract record available.
Inventors
- 👤 Leslie James Paterson Mcnicol
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:56
CPC Classifications
C; C06; C06B; C06B35/00; C01; C01B; C01B21/00; C01B21/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN THE PROCESS OF MANUFACTURING LEAD AZIDE FOR USE AS A PRIMARY INITATING EXPLOSIVE IN A DETONATOR BY PRECIPITATING LEAD AZIDE FROM AN AQUEOUS SOLUTION CONTAINING A WATER-SOLUBLE AZIDE AND A WATER-SOLUBLE LEAD SALT THE IMPROVEMENT WHICH COMPRISES PROVIDING IN SAID AQUEOUS SOLUTION AT LEAST 0.4 PERCENT BY WEIGHT OF COLLODIAL MATERIAL OF WHICH AT LEAST A PORTION IS GELATIN TREATED WITH AN ANTI-FOAMING AGENT, THE MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST 0.015 BY WEIGHT PERCENT GELATIN IN SAID SOLUTION.
Claim 2
Dependent Claim
85 words
IN THE PROCESS OF MANUFACTURING LEAD AZIDE FOR USE AS A PRIMARY INITATING EXPLOSIVE IN A DETONATOR BY PRECIPITATING LEAD AZIDE FROM AN AQUEOUS SOLUTION CONTAINING A WATER-SOLUBLE AZIDE AND A WATER-SOLUBLE LEAD SALT THE IMPROVEMENT WHICH COMPRISES PROVIDING IN SAID AQUEOUS SOLUTION AT LEAST 0.4 PERCENT BY WEIGHT OF COLLODIAL MATERIAL OF WHICH AT LEAST A PORTION IS GELATIN TREATED WITH AN ANTI-FOAMING AGENT, THE MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO PROVIDE AT LEAST 0.015 BY WEIGHT PERCENT GELATIN IN SAID SOLUTION.
References Cited (Backward Citations)
GB142898A
Cited
US2373800A
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US2421778A
Cited
US3095268A
Cited
US2989389A
Cited
US2965466A
Cited
US3173818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |