US3197323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Admixture for cementitious grouts and method of making same
Assignee: Intrusion Prepakt Inc
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Filing: 1961-02-20
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Granted: 1965-07-27
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Expires: 1981-02-20
Abstract
No abstract record available.
Inventors
- 👤 Solomon J Rehmar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:56
CPC Classifications
C; C04; C04B; C04B22/00; C04B22/02; C04B22/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
AN ARTICLE OF MANUFACTURE FOR USE IN ADMIXTURES FOR CEMENTITIOUS MATERIALS CONSISTING ESSENTIALLY OF AN INTIMATE MIXTURE OF FINELY DIVIDED ALUMINUM FLAKES AND A POWDERED EXTENDER AND A DRIED WATER SOLUBLE ORGANIC COATING MATERIAL, SAID ALUMINUM FLAKES BEING SUBSTANTIALLY FREE OF AN OXIDE FILM, BOTH SAID EXTENDER AND SAID COATING METERIAL BEING INERT TO ALUMINUM, THE RATIO OF SAID COATING MATERIAL TO THE SUM OF THE ALUMINUM FLAKES PLUS THE POWDERED EXTENDER BEING SUFFICIENTLY GREAT TO PROVIDE COHESION OF THE MIXTURE SO AS TO RESIST DISINTEGRATION THEREOF DURING SUBSEQUENT DRY MIXING AND SUFFICIENTLY SMALL TO PRODUCE A POROUS MIXTURE, SAID ALUMINUM FLAKES AND EXTENDER BEING DISPERSED THROUGHOUT SAID COATING MATERIAL AND SAID MIXTURE BEING IN THE FORM OF FINELY DIVIDED, DRIED PARTICLES.
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) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |