US2816012A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-producing compositions
Assignee: Drackett Co
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Filing: 1955-04-04
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Granted: 1957-12-10
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Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Walton George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:26
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A COMPOSITION LIBERATING HEAT WHEN ADDED TO WATER COMPRISING, IN ADMIXTURE IIN SUBSTANTIALLY DRY AND DIVIDED FORM, FROM ABOUT 2% TO ABOUT 8% ALUMINUM BY WEIGHT OF THE COMPOSITION, AND AN ALKAIL METAL HYDROXIDE, THE AMOUNT OF ALLKALINC AGENT BEING AT LEASAT TWICE THE THEORETICAL AMOUNT REQUIRED FOR COMBINATION WITH THE ALUMINUM, A WATER-SOLUBLE INORGANIC MITRATE IN AMOUNT SUFFICIENT TO OXIDIZE HYDROGEN RELEASED IIN THE REACTION, AND COPPER IN WATER SOLUBLE FROM IN AMOUNT FROM 0.4% TO 4.0%BY WEIGHT OF ALUMINUM
Claim 2
Dependent Claim
81 words
A COMPOSITION LIBERATING HEAT WHEN ADDED TO WATER COMPRISING, IN ADMIXTURE IIN SUBSTANTIALLY DRY AND DIVIDED FORM, FROM ABOUT 2% TO ABOUT 8% ALUMINUM BY WEIGHT OF THE COMPOSITION, AND AN ALKAIL METAL HYDROXIDE, THE AMOUNT OF ALLKALINC AGENT BEING AT LEASAT TWICE THE THEORETICAL AMOUNT REQUIRED FOR COMBINATION WITH THE ALUMINUM, A WATER-SOLUBLE INORGANIC MITRATE IN AMOUNT SUFFICIENT TO OXIDIZE HYDROGEN RELEASED IIN THE REACTION, AND COPPER IN WATER SOLUBLE FROM IN AMOUNT FROM 0.4% TO 4.0%BY WEIGHT OF ALUMINUM
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) | 1960-12-09 | 1961-06-10 | 1961-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-09 | 1965-06-10 | 1965-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-09 | 1969-06-10 | 1969-12-10 | $7700.00 | Window Closed / Lapsed |