US2653130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire extinguishing composition of cbrf or cfbrcfbr containing cf as a propellant
Assignee: EIDP Inc
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Filing: 1951-05-17
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Granted: 1953-09-22
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Expires: 1971-05-17
Abstract
No abstract record available.
Inventors
- 👤 Jr Bernhard J Eiseman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:07
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0028; A62D1/0057
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A SELF-PROPELLING LIQUID COMPOSITION CONSISTING ESSENTIALLY OF A SOLUTION OF CF4 IN A MEMBER OF THE GROUP CONSISTING OF CBR2F2 AND CF2BRCF2BR, IN WHICH THE CF4 CONSTITUTES FROM ABOUT 2.5% TO ABOUT 10% BY WEIGHT OF THE LIQUID, SAID COMPOSITION BEING MAINTAINED IN A CONFINED SPACE UNDER A PRESSURE CORRESPONDING TO ITS VAPOR PRESSURE.
Claim 2
Dependent Claim
54 words
A SELF-PROPELLING LIQUID COMPOSITION CONSISTING ESSENTIALLY OF A SOLUTION OF CF4 IN A MEMBER OF THE GROUP CONSISTING OF CBR2F2 AND CF2BRCF2BR, IN WHICH THE CF4 CONSTITUTES FROM ABOUT 2.5% TO ABOUT 10% BY WEIGHT OF THE LIQUID, SAID COMPOSITION BEING MAINTAINED IN A CONFINED SPACE UNDER A PRESSURE CORRESPONDING TO ITS VAPOR PRESSURE.
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) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |