US3802899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a paving composition
Assignee: Individual
•
Filing: 1971-10-15
•
Granted: 1974-04-09
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Expires: 1991-10-15
Abstract
Abstract A method of producing a paving composition in which sand is mixed with a binder and the mixture is allowed to cure into a rigid mass. The rigid mass is broken up into a particulate aggregate that is mixed with a second binder to form a finished paving composition.
Inventors
- 👤 Connaughay K Mc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:41
CPC Classifications
E; E01; E01C; E01C7/00; E01C7/08; E01C7/18; E01C7/26; C; C04; C04B; C04B18/00; C04B18/02; C08; C08L; C08L95/00; E01C7/182
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
The method of making a paving composition as set forth in claim 1 in which said clay is montmorillonite.
Claim 2
Dependent Claim
26 words
The method of making a paving composition as set forth in claim 1 in which said clay is a plastic clay treated with an anti-swelling agent.
Claim 3
Dependent Claim
72 words
The method as set forth in claim 1 with the addition that said first binder is Portland cement mixed with said sand at the rate of from about 4 to about 16 percent based upon the weight of the sand, and a coating of said bituminous second binder material is sprayed over said rigid mass at the rate of about .1 gallon per 650 pounds of said sand prior to said curing.
Claim 4
Dependent Claim
33 words
The method as set forth in claim 1 with the addition that from about 20 to about 70 percent of said sand is mixed with the processed aggregate to form said aggregate mixture.
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) | 1977-04-08 | 1977-10-08 | 1978-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-08 | 1981-10-08 | 1982-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-08 | 1985-10-08 | 1986-04-09 | $7700.00 | Window Closed / Lapsed |