US2546971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement composition and method of making
Assignee: Kaiser Aluminum and Chemical Corp
•
Filing: 1949-04-20
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Granted: 1951-04-03
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Expires: 1969-04-20
Abstract
No abstract record available.
Inventors
- 👤 Alva C Byrns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:02
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
44 words
PROCESS OF PREPARING SOREL CEMENT WHICH CORPRISES ADMIXING MAGNESIA, A TEMPERING AMOUNT OF WATER, AT LEAST ONE SALT CHOSEN FROM THE GROUP CONSISTING OF MAGNESIUM CHLORIDE AND MAGNESIUM SULFATE, AND FORM ABOUT 0.5% TO ABOUT 5.0% BASED ON THE TOTAL WEIGHT OF DRY INGREDIENTS
Claim 2
Dependent Claim
44 words
PROCESS OF PREPARING SOREL CEMENT WHICH CORPRISES ADMIXING MAGNESIA, A TEMPERING AMOUNT OF WATER, AT LEAST ONE SALT CHOSEN FROM THE GROUP CONSISTING OF MAGNESIUM CHLORIDE AND MAGNESIUM SULFATE, AND FORM ABOUT 0.5% TO ABOUT 5.0% BASED ON THE TOTAL WEIGHT OF DRY INGREDIENTS
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |