US3001882A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermal insulating material and method of making same
Assignee: Owens Corning
•
Filing: 1957-12-30
•
Granted: 1961-09-26
•
Expires: 1977-12-30
Abstract
No abstract record available.
Inventors
- 👤 William C Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:54
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
57 words
AN INSULATING PRODUCT CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF A LIME-SILICA SLURRY, THE LIME-SILICA MOLAR RATIO OF WHICH IS FORM 0.6:1 TO 1:1, SAID REACTION PRODUCT HAVING DISPERSED THEREIN A FINELY PARTICULATED ADDITIVE WHICH IS CHEMICALLY INERT TO THE SLURRY AND TO THE FINAL PRODUCT AND WHICH HAS A PARTICLE SIZE NOT GREATER THAN 74 MICORNS.
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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) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |