USRE30943E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized mixture
Assignee: Nicholson Realty Ltd
•
Filing: 1979-08-21
•
Granted: 1982-05-25
•
Expires: 1999-08-21
Abstract
Abstract A mixture consisting essentially of fly ash and cement kiln dust which reacts at ambient temperature with water to produce a durable mass.
Inventors
- 👤 John P. Nicholson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:27
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/04; C04B18/00; C04B18/04; C04B18/16; C04B18/162; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
11 words
A mixture consisting essentially of fly ash and cement kiln dust.
Claim 2
Dependent Claim
11 words
A mixture consisting essentially of fly ash and cement kiln dust.
Claim 3
Dependent Claim
13 words
The mixture set forth in claim 1 including an amount of portland cement.
Claim 4
Dependent Claim
28 words
The mixture set forth in claim 1 wherein said cement kiln dust comprises about 12% by dry weight and said fly ash comprises about 88% by dry weight.
Claim 5
Independent Claim
26 words
The method which comprises mixing fly ash, cement kiln dust and water and permitting the mixture to react at ambient temperatures to produce a durable mass.
Claim 6
Independent Claim
26 words
The method which comprises mixing fly ash, cement kiln dust and water and permitting the mixture to react at ambient temperatures to produce a durable mass.
Claim 7
Dependent Claim
53 words
The method set forth in claim 4 wherein said .[.fly ash.]. .Iadd.cement kiln dust .Iaddend.comprises about 12% by dry weight of the total of fly ash and cement kiln dust and the .[.cement kiln dust.]. .Iadd.fly ash .Iaddend.comprises about 88% by dry weight of the total of fly ash and cement kiln dust.
Claim 8
Dependent Claim
12 words
The mixture set forth in claim 1 including about 1% portland cement.
Claim 9
Dependent Claim
15 words
The mixture set forth in claim 1 wherein the fly ash comprises the major constituent.
Claim 10
Dependent Claim
21 words
The method set forth in claim 4 including mixing about 1% portland cement with said fly ash and cement kiln dust.
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) | 1985-05-24 | 1985-11-23 | 1986-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-24 | 1989-11-23 | 1990-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-24 | 1993-11-23 | 1994-05-25 | $7700.00 | Window Closed / Lapsed |