US2745807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid fire extinguishing composition
Assignee: Specialties Development Corp
•
Filing: 1952-12-05
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Granted: 1956-05-15
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Expires: 1972-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Anthony
- 👤 Jr Robert Thomann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:34
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0035
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A FIRE EXTINGUISHING COMPOSITION SERVICABLE AS A FREE FLOWING LIQUID AT ABOUT -65* F. CONSISTING ESSENTIALLY OF A WATER SOLUTION OF BETWEEN 40% AND 45% BY WEIGHT ZINC CHLORIDE AND BETWEEN 5% AND 15% BY WEIGHT OF AT LEAST ONE HALIDE SELECTED FROM THE GROUP CONSISTING OF CAICIUM BROMIDE, LITHIUM IODIDE, AND ZINC BROMIDE, SAID SOLUTION CONTAINING BETWEEN 50% AND 55% BY WEIGHT OF SAID MATERIALS.
Claim 2
Dependent Claim
66 words
A FIRE EXTINGUISHING COMPOSITION SERVICABLE AS A FREE FLOWING LIQUID AT ABOUT -65* F. CONSISTING ESSENTIALLY OF A WATER SOLUTION OF BETWEEN 40% AND 45% BY WEIGHT ZINC CHLORIDE AND BETWEEN 5% AND 15% BY WEIGHT OF AT LEAST ONE HALIDE SELECTED FROM THE GROUP CONSISTING OF CAICIUM BROMIDE, LITHIUM IODIDE, AND ZINC BROMIDE, SAID SOLUTION CONTAINING BETWEEN 50% AND 55% BY WEIGHT OF SAID MATERIALS.
References Cited (Backward Citations)
GB190222696A
Cited
US1633383A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |