US2726211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat storage materials
Assignee: General Electric Co
•
Filing: 1953-04-20
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Granted: 1955-12-06
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Expires: 1973-04-20
Abstract
No abstract record available.
Inventors
- 👤 Vincent J Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:56
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
A HEAT STORAGE MATERIAL CONSISTING ESSENTIALLY OF 5% TO 15% BY WEIGHT DIPHENYL ETHER AND 30% TO 50% BY WEIGHT OLEIC ACID, THE BALANCE CONSISTING OF STEARIC ACID.
Claim 2
Dependent Claim
28 words
A HEAT STORAGE MATERIAL CONSISTING ESSENTIALLY OF 5% TO 15% BY WEIGHT DIPHENYL ETHER AND 30% TO 50% BY WEIGHT OLEIC ACID, THE BALANCE CONSISTING OF STEARIC ACID.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |