US2860061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition and process for manufacturing cement
Assignee: FLSmidth and Co AS
•
Filing: 1955-12-07
•
Granted: 1958-11-11
•
Expires: 1975-12-07
Abstract
No abstract record available.
Inventors
- 👤 Heilmann Thorbjorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:56
CPC Classifications
C; C04; C04B; C04B7/00; C04B7/36; C04B7/38; C04B7/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A COMPOSITION FOR USE IN THE FORMATION OF STRONG NODULES OF A MATERIAL CONVERTIBLE BY BURNING INTO A HYDRAULIC CEMENT OF THE CLASS TYPIFIED BY PORTLAND CEMENT, WHICH COMPRISES A HYDRAULIC CEMENT RAW MATERIAL MIX, TO WHICH HAS BEEN ADDED FROM 1/2% TO 4% BY WEIGHT, OF THE MIX OF A MINERAL SUBSTANCE CONTAINING A SUBSTANTIAL PROPORTION OF MONTMORILLONITE AND HAVING THE PROPERTY OF SWELLING WHEN MOISTENED AND SHRINKING ON SUBSEQUENT DRYING.
Claim 2
Dependent Claim
72 words
A COMPOSITION FOR USE IN THE FORMATION OF STRONG NODULES OF A MATERIAL CONVERTIBLE BY BURNING INTO A HYDRAULIC CEMENT OF THE CLASS TYPIFIED BY PORTLAND CEMENT, WHICH COMPRISES A HYDRAULIC CEMENT RAW MATERIAL MIX, TO WHICH HAS BEEN ADDED FROM 1/2% TO 4% BY WEIGHT, OF THE MIX OF A MINERAL SUBSTANCE CONTAINING A SUBSTANTIAL PROPORTION OF MONTMORILLONITE AND HAVING THE PROPERTY OF SWELLING WHEN MOISTENED AND SHRINKING ON SUBSEQUENT DRYING.
References Cited (Backward Citations)
DE258970C
Cited
USRE17207E
Cited
US1629714A
Cited
US1955121A
Cited
US2007742A
Cited
GB439198A
Cited
US2073105A
Cited
US2627399A
Cited
US2466601A
Cited
US2587044A
Cited
US2776828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |