US3118807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bonded fibrous insulation
Assignee: Johns Manville Corp
•
Filing: 1960-02-25
•
Granted: 1964-01-21
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Expires: 1980-02-25
Abstract
No abstract record available.
Inventors
- 👤 Harry E Holcomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:51
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/001; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T442/00; Y10T442/50; Y10T442/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A LIGHTWEIGHT, REFRACTORY, THERMAL INSULATING BLANKET RESISTANT TO THERMAL DECOMPOSITION THROUGHOUT TEMPERATURES RANGING FROM AMBIENT UP TO APPROXIMATELY 2000*F. AND COMPOSED OF A FIBROUS COMPONENT OF ABOUT 80 TO 85% BY WEIGHT OF REFRACTORY MINERAL FIBER FELT AND A BINDER COMPONENT OF APPROXIMATELY 15 TO 20% BY WEIGHT OF BINDER MATERIALS WHICH PROVIDE STRENGTH AND INTEGRITY THROUGHOUT ALL TEMPERATURES RANGING FROM AMBIENT TO APPROXIMATELY 2000*F. DISPERSED UNIFORMLY THROUGHOUT THE REFRACTORY FIBERS OF THE FELT, SAID BINDER MATERIALS CONSISTING ESSENTIALLY OF APPROXIMATELY 10 TO 15 PARTS BY WEIGHT OF BENTONITE CLAY, APPROXIMATELY 3 TO 8 PARTS BY WEIGHT OF FINELY ROUND SODA-LIME-SILICA GLASS, AND APPROXIMATELY 2 TO 7 PARTS BY WEIGHT OF THERMOSETTING RESIN.
Claim 2
Dependent Claim
113 words
A LIGHTWEIGHT, REFRACTORY, THERMAL INSULATING BLANKET RESISTANT TO THERMAL DECOMPOSITION THROUGHOUT TEMPERATURES RANGING FROM AMBIENT UP TO APPROXIMATELY 2000*F. AND COMPOSED OF A FIBROUS COMPONENT OF ABOUT 80 TO 85% BY WEIGHT OF REFRACTORY MINERAL FIBER FELT AND A BINDER COMPONENT OF APPROXIMATELY 15 TO 20% BY WEIGHT OF BINDER MATERIALS WHICH PROVIDE STRENGTH AND INTEGRITY THROUGHOUT ALL TEMPERATURES RANGING FROM AMBIENT TO APPROXIMATELY 2000*F. DISPERSED UNIFORMLY THROUGHOUT THE REFRACTORY FIBERS OF THE FELT, SAID BINDER MATERIALS CONSISTING ESSENTIALLY OF APPROXIMATELY 10 TO 15 PARTS BY WEIGHT OF BENTONITE CLAY, APPROXIMATELY 3 TO 8 PARTS BY WEIGHT OF FINELY ROUND SODA-LIME-SILICA GLASS, AND APPROXIMATELY 2 TO 7 PARTS BY WEIGHT OF THERMOSETTING RESIN.
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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) | 1967-01-20 | 1967-07-22 | 1968-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-20 | 1971-07-22 | 1972-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-20 | 1975-07-22 | 1976-01-21 | $7700.00 | Window Closed / Lapsed |