US3677842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low light level tracer mix
Assignee: United States Department of the Army
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Filing: 1970-03-10
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Granted: 1972-07-18
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Expires: 1990-03-10
Abstract
Abstract A LOW LIGHT LEVEL, LONG-BURNING, SMALL ARMS TRACER PYROTECHNIC MIXTURE FOR USE WITH NIGHT VISION EQUIPMENT COMPRISING, BY WEIGHT PERCENT: STRONTIUM PEROXIDE, 10-90; BARIUM PERIOXIDE, 0-65; CALCIUM RESINATE, 5-15; AND MAGNESIUM CARBONATE, 10-15.
Inventors
- 👤 Thomas A Doris Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 02:35
CPC Classifications
C; C06; C06C; C06C15/00; Y; Y10; Y10S; Y10S149/00; Y10S149/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |