Patent US3222230A successfully refreshed from Google Patents.
US3222230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Generation of gaseous mixtures for inflatable devices
Assignee: Specialties Development Corp
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Filing: 1963-10-24
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Granted: 1965-12-07
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Expires: 1983-10-24
Abstract
No abstract record available.
Inventors
- 👤 Lester V Hebenstreit
- 👤 Charles A Heins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:03
CPC Classifications
B; B01; B01J; B01J7/00; B01J7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A CHARGE FOR PRODUCING A MIXTURE OF COOL GASES UNDER LOW PRESSURE CONSISTING ESSENTIALLY OF ABOUT 0.56 TO ABOUT 0.65 POUND OF A HOT GAS GENERATING PYROTECHNIC SUBSTANCE, SAID PYROTECHNIC SUBSTRATE BEING ONE WHICH PRODUCES ABOUT 974 TO ABOUT 1121 B.T.U. WHEN SAID 0.56 TO 0.65 POUND OF SUBSTANCE IS IGNITED, AN EXPANDABLE FLUID COOLANT ISOLATED FROM AND SURROUNDING SAID SUBSTANCE, SAID COOLANT CONSISTING ESSENTIALLY OF ABOUT 6.78 TO ABOUT 7.33 POUNDS OF CARBON DIOXIDE, SAID CHARGE BEING A TOTAL WEIGHT OF ABOUT 7.34 TO ABOUT 7.98 POUNDS, SAID PYROTECHNIC SUBSTANCE AND SAID ISOLATED COOLANT BEING OF AN ARRANGEMENT TO CAUSE SAID ISOLATED COOLANT TO ADMIX WITH HOT GASES TO BE GENERATED BY SAID PYROTECHNIC SUBSTANCE WHEN SAID PYROTECHNIC SUBSTANCE IS IGNITED.
Claim 2
Dependent Claim
122 words
A CHARGE FOR PRODUCING A MIXTURE OF COOL GASES UNDER LOW PRESSURE CONSISTING ESSENTIALLY OF ABOUT 0.56 TO ABOUT 0.65 POUND OF A HOT GAS GENERATING PYROTECHNIC SUBSTANCE, SAID PYROTECHNIC SUBSTRATE BEING ONE WHICH PRODUCES ABOUT 974 TO ABOUT 1121 B.T.U. WHEN SAID 0.56 TO 0.65 POUND OF SUBSTANCE IS IGNITED, AN EXPANDABLE FLUID COOLANT ISOLATED FROM AND SURROUNDING SAID SUBSTANCE, SAID COOLANT CONSISTING ESSENTIALLY OF ABOUT 6.78 TO ABOUT 7.33 POUNDS OF CARBON DIOXIDE, SAID CHARGE BEING A TOTAL WEIGHT OF ABOUT 7.34 TO ABOUT 7.98 POUNDS, SAID PYROTECHNIC SUBSTANCE AND SAID ISOLATED COOLANT BEING OF AN ARRANGEMENT TO CAUSE SAID ISOLATED COOLANT TO ADMIX WITH HOT GASES TO BE GENERATED BY SAID PYROTECHNIC SUBSTANCE WHEN SAID PYROTECHNIC SUBSTANCE IS IGNITED.
References Cited (Backward Citations)
US3143445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |