US3238129A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire fighting compositions
Assignee: WR Grace and Co
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Filing: 1963-11-12
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Granted: 1966-03-01
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Expires: 1983-11-12
Abstract
No abstract record available.
Inventors
- 👤 Preston L Veltman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:28
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0007; A62D1/0014; A62D1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
A FIRE FIGHTING COMPOSITION WHICH CONSISTS OF A MIXTURE OF; (1) 80 TO 20 PARTS BY WEIGHT OR ROLLED VERMICULITE, (2) 10 TO 40 PARTS BY WEIGHT OF A CO2 FORMING SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM BICARBONATE, SODIUM CARBONATE AND POTASSIUM CARBONATE; (3) 10 TO 40 PARTS BY WEIGHT OF A DRY ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF CITRIC ACID, TARTARIC ACID, OXALIC ACID, FUMARIC ACID AND ITACONIC ACID.
Claim 2
Dependent Claim
74 words
A FIRE FIGHTING COMPOSITION WHICH CONSISTS OF A MIXTURE OF; (1) 80 TO 20 PARTS BY WEIGHT OR ROLLED VERMICULITE, (2) 10 TO 40 PARTS BY WEIGHT OF A CO2 FORMING SALT SELECTED FROM THE GROUP CONSISTING OF SODIUM BICARBONATE, SODIUM CARBONATE AND POTASSIUM CARBONATE; (3) 10 TO 40 PARTS BY WEIGHT OF A DRY ORGANIC ACID SELECTED FROM THE GROUP CONSISTING OF CITRIC ACID, TARTARIC ACID, OXALIC ACID, FUMARIC ACID AND ITACONIC ACID.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |