Patent US3267030A successfully refreshed from Google Patents.
US3267030A
Expired / Lapsed
US
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Extinguisher powders based on alkali metal bicarbonates
Assignee: Solvay SA
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Filing: 1963-05-07
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Granted: 1966-08-16
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Expires: 1983-05-07
Abstract
No abstract record available.
Inventors
- 👤 Dessart Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:16
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0071; A62D1/0007; A62D1/0014
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
EXTINGUISHING POWDER COMPATIBLE WITH FIRE EXTINGUISHING FOAMS CONSISTING OF 80-98% OF AN ALKALI METAL BICARBONATE HAVING AN AVERAGE PARTICLE SIZE OF THE ORDER OF 10 MICRONS SELECTED FROM THE GROUP WHICH CONSISTS OF SODIUM BICARBONATE, POTASSIUM BICARBONATE, AND MIXTURE THEROF, 1-19% OF TALC, AND 1-8% OF VERY FINE GRAIN SILICA, HAVING AN AVERAGE PARTICLE SIZE OF LESS THAN 1 MICRON.
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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |