Patent US2853450A successfully refreshed from Google Patents.
US2853450A
Expired / Lapsed
US
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Extinguishing agents for magnesium fires
Assignee: FRANCIS EARLE LAB Inc
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Filing: 1955-08-15
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Granted: 1958-09-23
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Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Seymour I Richman
- 👤 Leon M Greenstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:40
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A LIQUID COMPOSITION USEFUL FOR EXTINGUISHING FIRES INVOLVING BURNING METAL COMPRISING A BLEND OF A FIRST INGREDIENT WHICH IS A PHTHALATE ESTER CHARACTERIZED BY ITS HIGH HEAT ABSORBING CAPACITY AND A SECOND INGREDIENT WHICH IS MONOCHLOROMONOBROMOMETHANE, SAID SECOND INGREDIENT REACTING WITH THE METAL TO FORM A PROTECTIVE COATING TO IMPEDE FURTHER OXIDATION, THE PROPORTIONS BY WEIGHT OF SAID INGREDIENTS BEING RESPECTIVELY FROM ABOUT THREE PARTS OF THE FIRST TO ONE PART OF THE SECOND TO ONE PART OF THE FIRST TO THREE PARTS OF THE SECOND.
Claim 2
Dependent Claim
86 words
A LIQUID COMPOSITION USEFUL FOR EXTINGUISHING FIRES INVOLVING BURNING METAL COMPRISING A BLEND OF A FIRST INGREDIENT WHICH IS A PHTHALATE ESTER CHARACTERIZED BY ITS HIGH HEAT ABSORBING CAPACITY AND A SECOND INGREDIENT WHICH IS MONOCHLOROMONOBROMOMETHANE, SAID SECOND INGREDIENT REACTING WITH THE METAL TO FORM A PROTECTIVE COATING TO IMPEDE FURTHER OXIDATION, THE PROPORTIONS BY WEIGHT OF SAID INGREDIENTS BEING RESPECTIVELY FROM ABOUT THREE PARTS OF THE FIRST TO ONE PART OF THE SECOND TO ONE PART OF THE FIRST TO THREE PARTS OF THE SECOND.
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |