US3118799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay compositions for delay electric detonators
Assignee: Zeneca Inc
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Filing: 1961-10-24
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Granted: 1964-01-21
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Expires: 1981-10-24
Abstract
No abstract record available.
Inventors
- 👤 Thomas Z Ball
- 👤 William D Trevorrow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:23
CPC Classifications
C; C06; C06C; C06C9/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A DELAY FUSE COMPOSITION CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF A FINELY DIVIDED ALLOY OF ZIRCONIUM AND NICKEL CONTAINING BETWEEN ABOUT 20 AND ABOUT 80% BY WEIGHT OF ZIRCONIUM, AND AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF RED LEAD, AND POTASSIUM PERMANGANATE SAID ALLOY BEING PRESENT IN AN AMOUNT OF FROM ABOUT 30 TO ABOUT 85% BY WEIGHT OF THE COMPOSITION.
Claim 2
Dependent Claim
64 words
A DELAY FUSE COMPOSITION CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF A FINELY DIVIDED ALLOY OF ZIRCONIUM AND NICKEL CONTAINING BETWEEN ABOUT 20 AND ABOUT 80% BY WEIGHT OF ZIRCONIUM, AND AN OXIDIZING AGENT SELECTED FROM THE GROUP CONSISTING OF RED LEAD, AND POTASSIUM PERMANGANATE SAID ALLOY BEING PRESENT IN AN AMOUNT OF FROM ABOUT 30 TO ABOUT 85% BY WEIGHT OF THE COMPOSITION.
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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |