Patent US3328136A successfully refreshed from Google Patents.
US3328136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for producing heat
Assignee: Verlam Distributors Inc
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Filing: 1964-03-18
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Granted: 1967-06-27
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Expires: 1984-03-18
Abstract
No abstract record available.
Inventors
- 👤 Jr John P Verakas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:33
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/16; F; F24; F24V; F24V30/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
IN A HEAT PRODUCING PACKAGE CONTAINING BOTH A DRY POWDER PORTION AND A LIQUID PORTION NORMALLY KEPT SEPARATE THEREIN, A HEAT PRODUCING COMPOSITION WHEREIN SAID DRY POWDER PORTION COMPRISES CALCINED KIESERITE, 0.5 TO 7.5% IRON OXIDE AND 2 TO 8% OF A VISCOSITY AGENT SELECTED FROM THE GROUP CONSISTING OF CARBOXYMETHYL CELLULOSE, BENTONITE, STARCH, GELATIN, FLOUR AND VERMICULITE AND SAID LIQUID COMPRISES WATER, THERE BEING FROM 1/2 TO 2 1/2 PARTS OF LIQUID TO EACH PART OF DRY POWDER.
Claim 2
Dependent Claim
79 words
IN A HEAT PRODUCING PACKAGE CONTAINING BOTH A DRY POWDER PORTION AND A LIQUID PORTION NORMALLY KEPT SEPARATE THEREIN, A HEAT PRODUCING COMPOSITION WHEREIN SAID DRY POWDER PORTION COMPRISES CALCINED KIESERITE, 0.5 TO 7.5% IRON OXIDE AND 2 TO 8% OF A VISCOSITY AGENT SELECTED FROM THE GROUP CONSISTING OF CARBOXYMETHYL CELLULOSE, BENTONITE, STARCH, GELATIN, FLOUR AND VERMICULITE AND SAID LIQUID COMPRISES WATER, THERE BEING FROM 1/2 TO 2 1/2 PARTS OF LIQUID TO EACH PART OF DRY POWDER.
References Cited (Backward Citations)
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Cited
US1819807A
Cited
US1850166A
Cited
US2157169A
Cited
US2250009A
Cited
US2531359A
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US2800456A
Cited
US3175558A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |