US3356828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heated heat storage apparatus
Assignee: Individual
•
Filing: 1965-04-28
•
Granted: 1967-12-05
•
Expires: 1985-04-28
Abstract
No abstract record available.
Inventors
- 👤 Furness Raymond Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:31
CPC Classifications
F; F24; F24H; F24H7/00; F24H7/02; F24H7/0208
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A HEAT STORAGE HEATER COMPRISING A LIQUID-TIGHT CONTAINER; SUPPORT MEANS SUPPORTING SAID CONTAINER RELATIVE TO A SUPPORTING SURFACE; A HEAT STORAGE MATERIAL CONTAINED IN SAID LIQUID-TIGHT CONTAINER, SAID HEAT STORAGE MATERIAL CONSISTING OF A MIXTURE OF MIXROCRYSTALLINE PETROLEUM WAX, POLYETHYLENE AND BETWEEN FIVE AND EIGHT PERCENT BY WEIGHT OF AN ALUMINUM POWDER; AN ELECTRIC HEATING ELEMENT POSITIONED TO TRANSFER HEAT TO SAID HEAT STORAGE MATERIAL, SAID ELECTRIC HEATING ELEMENT HAVING A CAPACITY SUFFICIENT TO EFFECT FUSION OF SAID MATERIAL AND A HEAT DISSIPATING MEANS ASSOCIATED WITH SAID CONTAINER TO ALLOW FOR UTILIZATION OF THE HEAT STORED IN SAID HEAT STORAGE MATERIAL.
Claim 2
Dependent Claim
101 words
A HEAT STORAGE HEATER COMPRISING A LIQUID-TIGHT CONTAINER; SUPPORT MEANS SUPPORTING SAID CONTAINER RELATIVE TO A SUPPORTING SURFACE; A HEAT STORAGE MATERIAL CONTAINED IN SAID LIQUID-TIGHT CONTAINER, SAID HEAT STORAGE MATERIAL CONSISTING OF A MIXTURE OF MIXROCRYSTALLINE PETROLEUM WAX, POLYETHYLENE AND BETWEEN FIVE AND EIGHT PERCENT BY WEIGHT OF AN ALUMINUM POWDER; AN ELECTRIC HEATING ELEMENT POSITIONED TO TRANSFER HEAT TO SAID HEAT STORAGE MATERIAL, SAID ELECTRIC HEATING ELEMENT HAVING A CAPACITY SUFFICIENT TO EFFECT FUSION OF SAID MATERIAL AND A HEAT DISSIPATING MEANS ASSOCIATED WITH SAID CONTAINER TO ALLOW FOR UTILIZATION OF THE HEAT STORED IN SAID HEAT STORAGE MATERIAL.
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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) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |