US3100156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulating product and method for making same
Assignee: Owens Corning
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Filing: 1959-11-03
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Granted: 1963-08-06
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Expires: 1979-11-03
Abstract
No abstract record available.
Inventors
- 👤 George L Kalousek
- 👤 Arthur D Denny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:13
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/18; C04B24/00; C04B24/24; C04B24/26; C04B24/2664
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
81 words
A MOLDED THERMAL INSULATING PRODUCT FREE OF AIR HOLES AND POURING FOLDS COMPRISING CRYSTALLINE HYDROUS CALCIUM SILICATE MADE BY INDURATING AN AQUEOUS LIME-SILICA SLURRY HAVING A LIME TO SILICA MOLAR RATIO WITHIN THE RANGE OF FROM 0.6 TO 1:1 AND A WATER TO SOLIDS RATIO OF FROM 0.75:1 TO 9:1, AND CONTAINING FROM 0.0075 TO 0.075% BY DRY WEIGHT OF THE SOLIDS IN SAID SLURRY OF A SODIUM SALT OF AN APPROXIMATELY 50:50 MOLE RATIO COPOLYMER OF MALEIC ANHYDRIDE WITH DIISOBUTYLENE.
References Cited (Backward Citations)
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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) | 1966-08-05 | 1967-02-04 | 1967-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-05 | 1971-02-04 | 1971-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-05 | 1975-02-04 | 1975-08-06 | $7700.00 | Window Closed / Lapsed |