US3017348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing compositions
Assignee: Gruenau Illertissen GmbH
•
Filing: 1959-01-19
•
Granted: 1962-01-16
•
Expires: 1979-01-19
Abstract
No abstract record available.
Inventors
- 👤 Steppe Vollrad
- 👤 Schulenburg Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:08
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0007; A62D1/0014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A SOLID DRY CHEMICAL FIRE EXTINGUISHING COMPOSITION CONSISTING ESSENTIALLY OF POWDERED MIXTURE OF 50 TO 90 PARTS BY WEIGHT OF AMMONIUM PHOSPHATE, 15 TO 30 PARTS BY BY WEIGHT OF AMMONIUM SULFATE AND 8 TO 20 PARTS BY WEIGHT OF BARIUM SULFATE.
Claim 2
Dependent Claim
42 words
A SOLID DRY CHEMICAL FIRE EXTINGUISHING COMPOSITION CONSISTING ESSENTIALLY OF POWDERED MIXTURE OF 50 TO 90 PARTS BY WEIGHT OF AMMONIUM PHOSPHATE, 15 TO 30 PARTS BY BY WEIGHT OF AMMONIUM SULFATE AND 8 TO 20 PARTS BY WEIGHT OF BARIUM SULFATE.
References Cited (Backward Citations)
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US2631977A
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US2648641A
Cited
US2901428A
Cited
US2881138A
Cited
US2866760A
Cited
US2816864A
Cited
US2901427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |