US2677664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter for the storage of heat
Assignee: Individual
•
Filing: 1951-02-19
•
Granted: 1954-05-04
•
Expires: 1971-02-19
Abstract
No abstract record available.
Inventors
- 👤 Telkes Maria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:24
CPC Classifications
C; C09; C09K; C09K5/00; C09K5/02; C09K5/06; Y; Y10; Y10S; Y10S159/00; Y10S159/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
20 words
A COMPOSITION OF MATTER CONSISTING BY WEIGHT OF APPROXIMATELY 1% TO 5% BORAX, AND THE BALANCE ESSENTIALLY ALL GLAUBER''S SALT.
Claim 2
Dependent Claim
20 words
A COMPOSITION OF MATTER CONSISTING BY WEIGHT OF APPROXIMATELY 1% TO 5% BORAX, AND THE BALANCE ESSENTIALLY ALL GLAUBER''S SALT.
References Cited (Backward Citations)
DE468756C
Cited
US1887618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |