US2825639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ignition composition
Assignee: Olin Corp
•
Filing: 1951-08-06
•
Granted: 1958-03-04
•
Expires: 1971-08-06
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Mulqueeny
- 👤 Frederick R Seavey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:45
CPC Classifications
C; C06; C06C; C06C7/00; C06B; C06B25/00; C06B25/10; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/111
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
IN AN ELECTRIC DETONATOR HAVING A BASE CHARGE AND AN IGNITION CHARGE, SAID IGNITION CHARGE COMPRISING MERCURY FULMINATE MIXED WITH GROUND DENSE SMOKELESS POWDER IN THE PROPORTIONS OF FROM 1.0 TO 2.3 PARTS BY WEIGHT OF THE POWDER TO EACH PART OF MERCURY FULMINATE.
Claim 2
Dependent Claim
44 words
IN AN ELECTRIC DETONATOR HAVING A BASE CHARGE AND AN IGNITION CHARGE, SAID IGNITION CHARGE COMPRISING MERCURY FULMINATE MIXED WITH GROUND DENSE SMOKELESS POWDER IN THE PROPORTIONS OF FROM 1.0 TO 2.3 PARTS BY WEIGHT OF THE POWDER TO EACH PART OF MERCURY FULMINATE.
References Cited (Backward Citations)
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Cited
GB145791A
Cited
US1481361A
Cited
US1518629A
Cited
US2350172A
Cited
US2425854A
Cited
US2511669A
Cited
US2495868A
Cited
US2607672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |