Patent US3144346A successfully refreshed from Google Patents.
US3144346A
Expired / Lapsed
US
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Calcium silicate hydrate products
Assignee: Individual
•
Filing: 1954-02-12
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Granted: 1964-08-11
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Expires: 1974-02-12
Abstract
No abstract record available.
Inventors
- 👤 Dilnot Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:40
CPC Classifications
C; C04; C04B; C04B38/00; C04B38/10; C04B38/106; C04B2111/00; C04B2111/40
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
IN A METHOD FOR MAKING AN INDURATED, LIGHT WEIGHT CALCIUM SILICATE HYDRATE PRODUCT, THE STEPS WHICH INCLUDE: AGITATING A MIXTURE COMPRISING A CALCAREOUS COMPONENT, A SILICEOUS COMPONENT, A POROUS LIGHT WEIGHT AGGREGATE AND WATER TO FORM A BODY OF A SUBSTANTIALLY UNIFORM SLURRY, THE AMOUNT OF WATER BEING PROPORTIONED TO PROVIDE A STABLE SLURRY; AGITATING THE BODY OF SLURRY AND INJECTING PREFORMED FOAM UNDER PRESSURE BENEATH THE SURFACE OF THE BODY OF SLURRY TO FORM AN AERATED SLURRY; TRANSFERRING THE AERATED SLURRY TO A MOLD; AND SUBSEQUENTLY INDURATING THE MOLDED SLURRY TO FORM AN INDURATED PRODUCT COMPRISING A PLURALITY OF PARTICLES OF POROUS LIGHT WEIGHT AGGREGATE SURROUND SUBSTANTIALLY ENTIRELY AND BONDED BY A RIGID MATRIX OF AERATED CALCIUM SILICATE HYDRATE.
References Cited (Backward Citations)
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US1932971A
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US2282190A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-11 | 1968-02-10 | 1968-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-11 | 1972-02-10 | 1972-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-11 | 1976-02-10 | 1976-08-11 | $7700.00 | Window Closed / Lapsed |