US3350306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing powders
Assignee: D'ETUDES CHIMIQUES POUR L'INDUSTRIE ET L'AGRICULTURE Ste
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Filing: 1963-12-16
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Granted: 1967-10-31
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Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Jean C Alleton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:11
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0007; A62D1/0014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
A FREE FLOWING ALKALI METAL BICARONATE FIRE EXTINGUISHING POWDER CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF AN ALKALI METAL BICARBONATE AND 0.5-10 PARTS BY WEIGHT OF AN ANTI-CAKING INORGANIC WATER-SOLUBLE IRON SALT, SUBSTANTIALLY ALL THE ALALI METAL BICARBONATE POWDER BEING AT LEAST PARTIALLY COATED WITH SAID IRON SALT.
Claim 2
Dependent Claim
49 words
A FREE FLOWING ALKALI METAL BICARONATE FIRE EXTINGUISHING POWDER CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF AN ALKALI METAL BICARBONATE AND 0.5-10 PARTS BY WEIGHT OF AN ANTI-CAKING INORGANIC WATER-SOLUBLE IRON SALT, SUBSTANTIALLY ALL THE ALALI METAL BICARBONATE POWDER BEING AT LEAST PARTIALLY COATED WITH SAID IRON SALT.
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) | 1970-10-30 | 1971-05-01 | 1971-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-30 | 1975-05-01 | 1975-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-30 | 1979-05-01 | 1979-10-31 | $7700.00 | Window Closed / Lapsed |