Patent US3726728A successfully refreshed from Google Patents.
US3726728A
Expired / Lapsed
US
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Binderless cast photoflash compositions
Assignee: United States Department of the Navy
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Filing: 1970-04-20
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Granted: 1973-04-10
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Expires: 1990-04-20
Abstract
Abstract A BINDERLESS CAST PHOTOFLASH COMPOSITION CONSISTING OF ABOUT 40% BY WEIGHT METAL POWDER DISPERSED IN ABOUT 60% BY WEIGHT MOLTEN INORGANIC OXIDIZER. THIS COMPOSITION IS LESS SENSITIVE TO IMPACT, FRICTION, AND STATIC ELECTRICITY THAN FLASH POWDERS CONSISTING OF FINELY DIVIDED LOOSE-POWDER METAL AND OXIDIZER MIXTURES.
Inventors
- 👤 H Kruse
- 👤 B Breslow
- 👤 R Szypulski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:54
CPC Classifications
C; C06; C06B; C06B33/00; C06B33/06; F; F21; F21K; F21K5/00; Y; Y10; Y10S; Y10S149/00; Y10S149/11; Y10S149/113
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) | 1976-04-09 | 1976-10-09 | 1977-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-09 | 1980-10-09 | 1981-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-09 | 1984-10-09 | 1985-04-10 | $7700.00 | Window Closed / Lapsed |