US3661776A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition comprising a foam-forming fluoroaliphatic compound and a film-forming fluoroaliphatic compound
Assignee: 3M Co
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Filing: 1970-08-24
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Granted: 1972-05-09
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Expires: 1990-08-24
Abstract
Abstract AN AQUEOUS COMPOSITION FOR EXTINGUISHING OR PREVENTING FLAMMABLE FUEL FIRES IS FORMULATED AS A 6% CONCENTRATE COMPOSITION AND COMPRISE WATER, A WATER-SOLUBLE FOAM-FORMING FLUOROALIPHATIC COMPOUND AT LEAST ONE WATER-SOLUBLE FILM-FORMING TWO-COMPONENT FLUOROALIPHATIC SALT, VIZ, ONE HAVING AN ACID COMPONENT AND A BASE COMPONENT. THE 6% CONCENTRATE COMPOSITION IS DILUTED WITH SIXTEEN PARTS WATER, BY WEIGHT, AND IS APPLIED ONTO A HYDROCARBON FUEL FIRE AS A BLANKETING FOAM.
Inventors
- 👤 Robert B Fletcher
- 👤 Kenneth W Livermore St
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:02
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0071; A62D1/0085; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03; Y10S516/04; Y10S516/05; Y10S516/07; Y10S516/905; Y10S516/914; Y10S516/915
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-09 | 1975-11-08 | 1976-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-09 | 1979-11-08 | 1980-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-09 | 1983-11-08 | 1984-05-09 | $7700.00 | Window Closed / Lapsed |