US3274105A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing composition
Assignee: D'etudes Chimiques Pour L'industrie Et L'agriculture Secpia Ste
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Filing: 1963-07-15
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Granted: 1966-09-20
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Expires: 1983-07-15
Abstract
No abstract record available.
Inventors
- 👤 Mevel Norbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:52
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0035
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
55 words
A METHOD OF EXTINGUISHING A FIRE, WHICH METHOD COMPRISES THE STEP OF CONTACTING THE SOURCE OF THE FIRE WITH AN AQUEOUS SOLUTION CONTAINING ABOUT 300-600 GRAMS/LITER OF POTASSIUM ACETATE AND IN ADDITION A SUFFICIENT QUANTITY OF TETRAPOTASSIUM PYROPHOSPHATE TO INCREASE THE EXTINGUISHING EFFECT OF SAID POTASSIUM ACETATE, SAID SOLUTION HAVING A PH HIGHER THAN 7.
Claim 2
Independent Claim
55 words
A METHOD OF EXTINGUISHING A FIRE, WHICH METHOD COMPRISES THE STEP OF CONTACTING THE SOURCE OF THE FIRE WITH AN AQUEOUS SOLUTION CONTAINING ABOUT 300-600 GRAMS/LITER OF POTASSIUM ACETATE AND IN ADDITION A SUFFICIENT QUANTITY OF TETRAPOTASSIUM PYROPHOSPHATE TO INCREASE THE EXTINGUISHING EFFECT OF SAID POTASSIUM ACETATE, SAID SOLUTION HAVING A PH HIGHER THAN 7.
Claim 3
Dependent Claim
61 words
A PROCESS FOR THE PREPARATION OF AN AQUEOUS POTASSIUM ACETATE FIRE EXTINGUISHING SOLUTION, WHICH PROCESS COMPRISES GRADUALLY ADDING ACETIC ACID TO AN AQUEOUS MIXTURE OF POTASSIUM CARBONATE AND POTASSIUM HYDROXIDE, THE MOLAR RATIO K2CO3/KOH OF THE MIXTURE BEING ABOUT 0.5:1 TO ABOUT 1.25:1, THE QUANTITY OF ACETIC ACID BEING SUFFICIENT TO NEUTRALIZE SAID MIXTURE, SAID SOLUTION HAVING A PH ABOVE 7.
Claim 4
Dependent Claim
61 words
A PROCESS FOR THE PREPARATION OF AN AQUEOUS POTASSIUM ACETATE FIRE EXTINGUISHING SOLUTION, WHICH PROCESS COMPRISES GRADUALLY ADDING ACETIC ACID TO AN AQUEOUS MIXTURE OF POTASSIUM CARBONATE AND POTASSIUM HYDROXIDE, THE MOLAR RATIO K2CO3/KOH OF THE MIXTURE BEING ABOUT 0.5:1 TO ABOUT 1.25:1, THE QUANTITY OF ACETIC ACID BEING SUFFICIENT TO NEUTRALIZE SAID MIXTURE, SAID SOLUTION HAVING A PH ABOVE 7.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |