Patent US3116158A successfully refreshed from Google Patents.
US3116158A
Expired / Lapsed
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Thermal insulating materials and method of making
Assignee: Owens Corning
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Filing: 1959-08-26
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Granted: 1963-12-31
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Expires: 1979-08-26
Abstract
No abstract record available.
Inventors
- 👤 William C Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:34
CPC Classifications
C; C04; C04B; C04B14/00; C04B14/38; C04B14/46; C04B14/4643; C04B14/465; C04B28/00; C04B28/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN INTEGRATED HIGH DENSITY HYDROUS CALCIUM SILICATE BODY HAVING A CRYSTALLINE MATRIX CONSISTING ESSENTIALLY OF XONOTLITE CRYSTALS AND HAVING 35 TO 50 PERCENT BY WEIGHT OF COARSE CRYSTALLINE MINERAL WOLLASTONITE FIBERS DISTRIBUTED THROUGHOUT THE SAID BODY, SAID WOLLASTONITE FIBERS HAVING A PARTICLE SIZE DISTRIBUTION RANGE SUCH THAT LESS THAN ABOUT 10 PERCENT BY WEIGHT OF SAID FIBERS WILL PASS A 100 MESH SCREEN AND SAID FIBERS HAVING AN AVERAGE LENGTH TO THICKNESS OF ABOUT 8 TO 1.
Claim 2
Dependent Claim
77 words
AN INTEGRATED HIGH DENSITY HYDROUS CALCIUM SILICATE BODY HAVING A CRYSTALLINE MATRIX CONSISTING ESSENTIALLY OF XONOTLITE CRYSTALS AND HAVING 35 TO 50 PERCENT BY WEIGHT OF COARSE CRYSTALLINE MINERAL WOLLASTONITE FIBERS DISTRIBUTED THROUGHOUT THE SAID BODY, SAID WOLLASTONITE FIBERS HAVING A PARTICLE SIZE DISTRIBUTION RANGE SUCH THAT LESS THAN ABOUT 10 PERCENT BY WEIGHT OF SAID FIBERS WILL PASS A 100 MESH SCREEN AND SAID FIBERS HAVING AN AVERAGE LENGTH TO THICKNESS OF ABOUT 8 TO 1.
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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) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |