Patent US3261731A successfully refreshed from Google Patents.
US3261731A
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Calcium containing pyrotechnic compositions for high altitudes
Assignee: Individual
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Filing: 1964-06-08
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Granted: 1966-07-19
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 Lopatin Seymour
- 👤 Hart Ruth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:15
CPC Classifications
C; C06; C06B; C06B33/00; C06B33/06; C06B21/00; C06B21/0033; C06C; C06C15/00; Y; Y10; Y10S; Y10S149/00; Y10S149/116
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR PREPARING A PYROTECHNIC COMPOSITION COMPRISING, GRINDING SEPARATELY TO A POWDER 40-90% OF METAL CALCIUM AND 60-10% OF POTASSIUM PERCHLORATE, BLENDING TOGETHER THE POWDERED CONSTITUENTS IN A SEALED CONTAINER FOR A UNIFORM MIXTURE AND PACKAGING THE POWDERED MIXTURE INTO A VEHICLE WHICH ON COMBUSTION OF THE COMPOSITION AT AN ALTITUDE ABOVE 100,000 FEED WILL YIELD A LIGHT OUTPUT MORE THAN DOUBLE THAT EMITTED BY COMBUSTION OF COMPOSITION AT SEA LEVEL.
Claim 2
Dependent Claim
62 words
A PYROTECHNIC COMPOSITION YIELDING A HIGHER LIGHT OUTPUT ON IGNITION AT AN ALTITUDE OVER 100,000 FEED THAN ON IGNITION AT SEA LEVEL IN WHICH THE COMPOSITION CONSISTS OF A FINELY DIVIDED MIXTURE OF A POWDERED CONSTITUENT CONTAINING CALCIUM, A POWDERED OXIDIZING AGENT AND A POWDERED BINDER SELECTED FROM THE GROUP CONSISTING OF NITROCELLULOSE LACQUER, VINYL ACETATE ALCOHOL RESIN, LAMINAC AND EPOXY RESION.
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |