US3042536A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinculum for porous alkaline earth metal silicate insulating materials
Assignee: Owens Corning
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Filing: 1957-10-22
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Granted: 1962-07-03
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Expires: 1977-10-22
Abstract
No abstract record available.
Inventors
- 👤 Dana L Bishop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A VINCULUM COMPOSITION FOR USE PRE-FORMED HYDROUS CALCIUM SILICATE INSULATING MATERIALS, SAID VINCULCUM COMPRISING A DRY COMMINUTED MIXTURE CONSISTING ESSENTIALLY OF ABOUT 49% BY WEIGHT OF AN INDURATED REACTION PRODUCT OF AN AQUEOUS SUSPENSION OF REACTIVE LIME AND SILICA IN THE MOLAR RATIO OF ABOUT 0.95 TO 1.0 MOL OF LIME TO ABOUT 1.0 MOL OF SILICA, ABOUT 20% AMOSITE ASBESTOS, ABOUT 30% HYDRAULIC CALCIUM ALUMINATE CEMENT, AND ABDOUT 1% POWDERED METHYL CELLULOSE
Claim 2
Dependent Claim
73 words
A VINCULUM COMPOSITION FOR USE PRE-FORMED HYDROUS CALCIUM SILICATE INSULATING MATERIALS, SAID VINCULCUM COMPRISING A DRY COMMINUTED MIXTURE CONSISTING ESSENTIALLY OF ABOUT 49% BY WEIGHT OF AN INDURATED REACTION PRODUCT OF AN AQUEOUS SUSPENSION OF REACTIVE LIME AND SILICA IN THE MOLAR RATIO OF ABOUT 0.95 TO 1.0 MOL OF LIME TO ABOUT 1.0 MOL OF SILICA, ABOUT 20% AMOSITE ASBESTOS, ABOUT 30% HYDRAULIC CALCIUM ALUMINATE CEMENT, AND ABDOUT 1% POWDERED METHYL CELLULOSE
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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |