US2987407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for accelerating the setting of hydraulic binders
Assignee: Casius Corp Ltd
•
Filing: 1958-08-15
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Granted: 1961-06-06
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Expires: 1978-08-15
Abstract
No abstract record available.
Inventors
- 👤 Ulfstedt Leo Torsten
- 👤 Wijard Endel
- 👤 Wastesson Anders Gustav
- 👤 Jorgensen Karl Axel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:52
CPC Classifications
C; C04; C04B; C04B22/00; C04B22/08; C04B22/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
IN THE MANUFACTURE OF SLAG CEMENT, THE PROCESS OF FORMING A MIXTURE COMPRISING A FINELY GROUND BLASTFURNACE SLAG AND PORTLAND CEMENT, AND INCORPORATING WITH SAID MIXTURE A FINELY DIVIDED BASIC MAGNESIUM CARBONATE IN AN AMOUNT OF FROM ABOUT 0.1 TO 5%, BASED ON THE WEIGHT OF THE HYDRAULIC COMPONENTS OF THE MIXTURE, TO ACCELERATE THE SETTING OF THE MIXTURE.
Claim 2
Dependent Claim
59 words
IN THE MANUFACTURE OF SLAG CEMENT, THE PROCESS OF FORMING A MIXTURE COMPRISING A FINELY GROUND BLASTFURNACE SLAG AND PORTLAND CEMENT, AND INCORPORATING WITH SAID MIXTURE A FINELY DIVIDED BASIC MAGNESIUM CARBONATE IN AN AMOUNT OF FROM ABOUT 0.1 TO 5%, BASED ON THE WEIGHT OF THE HYDRAULIC COMPONENTS OF THE MIXTURE, TO ACCELERATE THE SETTING OF THE MIXTURE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-05 | 1964-12-05 | 1965-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-05 | 1968-12-05 | 1969-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-05 | 1972-12-05 | 1973-06-06 | $7700.00 | Window Closed / Lapsed |