US3212960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Asbestos-glass fiber saturating paper containing thermoplastic resin and aluminum acid phosphate
Assignee: Johns Manville Corp
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Filing: 1962-12-04
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Granted: 1965-10-19
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Expires: 1982-12-04
Abstract
No abstract record available.
Inventors
- 👤 Robert G Quinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:50
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/18; D21H13/00; D21H13/36; D21H13/38; D21H13/40; D21H13/42; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A POROUS, FLEXIBLE ASBESTOS-GLASS FIBER PAPER HAVING A BULK OF AT LEAST 0.30 WHEREIN BULK IS DEFINED AS THE THICKNESS OF THE PAPER IN INCHES DIVIDED BY THE PAPER WEIGHT IN POUNDS PER 100 SQUARE FEET TIMES 100, CONSISTING ESSENTIALLY OF APPROXIMATELY 60% TO 91.5% BY WEIGHT OF HARSH ASBESTOS FIBERS, APPROXIMATELY 5% TO 25% BY WEIGHT OF FINE GLASS FIBERS HAVING A FIBER DIAMETER AVERAGING LESS THAN ABOUT 3 MICRONS, APPROXIMATELY 2% TO 10% BY WEIGHT OF THERMOPLASTIC RESIN BINDER DISPERSED THROUGHOUT THE FIBROUS CONSTITUENTS, AND ABOUT 1.5% TO 15% BY WEIGHT OF ALUMINUM ACID PHOSPHATE SOLIDS.
Claim 2
Dependent Claim
98 words
A POROUS, FLEXIBLE ASBESTOS-GLASS FIBER PAPER HAVING A BULK OF AT LEAST 0.30 WHEREIN BULK IS DEFINED AS THE THICKNESS OF THE PAPER IN INCHES DIVIDED BY THE PAPER WEIGHT IN POUNDS PER 100 SQUARE FEET TIMES 100, CONSISTING ESSENTIALLY OF APPROXIMATELY 60% TO 91.5% BY WEIGHT OF HARSH ASBESTOS FIBERS, APPROXIMATELY 5% TO 25% BY WEIGHT OF FINE GLASS FIBERS HAVING A FIBER DIAMETER AVERAGING LESS THAN ABOUT 3 MICRONS, APPROXIMATELY 2% TO 10% BY WEIGHT OF THERMOPLASTIC RESIN BINDER DISPERSED THROUGHOUT THE FIBROUS CONSTITUENTS, AND ABOUT 1.5% TO 15% BY WEIGHT OF ALUMINUM ACID PHOSPHATE SOLIDS.
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) | 1968-10-18 | 1969-04-19 | 1969-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-18 | 1973-04-19 | 1973-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-18 | 1977-04-19 | 1977-10-19 | $7700.00 | Window Closed / Lapsed |