US2906317A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of shaping fibrous bodies
Assignee: PPG Industries Inc
•
Filing: 1956-03-23
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Granted: 1959-09-29
•
Expires: 1976-03-23
Abstract
No abstract record available.
Inventors
- 👤 Marcus W Keyes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:03
CPC Classifications
B; B28; B28B; B28B21/00; B28B21/42; B28B21/48; B28B1/00; B28B1/52; B28B1/526; B29; B29C; B29C53/00; B29C53/56; B29C53/58; B29C53/60; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1036; Y10T156/1038
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A METHOD OF FORMING A SHAPED POROUS BODY WHICH COMPRISES PROVIDING A PLANAR, POROUS, RESILIENT, FIBROUS MAT IN WHICH THE FIBERS ARE BOUND TO EACH OTHER IN FIXED, HAPHAZARD RELATION BY MEANS OF A RESINOUS BINDER SO THAT THE MAT TENDS TO SPRING BACK TO ITS PLANAR SHAPE WHEN BENT, SAID MAT HAVING A DENSITY OF 0.2 TO 6 POUNDS PER CUBIC FOOT, CHANGING THE SHAPE OF THE MAT WITHOUT SUBSTANTIALLY REDUCING THE THICKNESS OF THE MAT, THE FIBERS THROUGHOUT THE MAT WHEN FORMED IN THE NEW SHAPE BEING BENT AND PROVIDED WITH AN ADDITIONAL AMOUNT OF A CURABLE, RESINOUS BINDER, AND CURING THE ADDITIONAL BINDER TO PERMANENTLY BOND THE FIBERS IN THEIR NEW BENT POSITION AND THE MAT IN ITS NEW SHAPE, THE TOTAL AMOUNT OF RESINOUS BINDER IN THE FINAL POROUS PRODUCT BEING 3 TO 50 PERCENT BY WEIGHT OF THE PRODUCT.
Claim 2
Independent Claim
144 words
A METHOD OF FORMING A SHAPED POROUS BODY WHICH COMPRISES PROVIDING A PLANAR, POROUS, RESILIENT, FIBROUS MAT IN WHICH THE FIBERS ARE BOUND TO EACH OTHER IN FIXED, HAPHAZARD RELATION BY MEANS OF A RESINOUS BINDER SO THAT THE MAT TENDS TO SPRING BACK TO ITS PLANAR SHAPE WHEN BENT, SAID MAT HAVING A DENSITY OF 0.2 TO 6 POUNDS PER CUBIC FOOT, CHANGING THE SHAPE OF THE MAT WITHOUT SUBSTANTIALLY REDUCING THE THICKNESS OF THE MAT, THE FIBERS THROUGHOUT THE MAT WHEN FORMED IN THE NEW SHAPE BEING BENT AND PROVIDED WITH AN ADDITIONAL AMOUNT OF A CURABLE, RESINOUS BINDER, AND CURING THE ADDITIONAL BINDER TO PERMANENTLY BOND THE FIBERS IN THEIR NEW BENT POSITION AND THE MAT IN ITS NEW SHAPE, THE TOTAL AMOUNT OF RESINOUS BINDER IN THE FINAL POROUS PRODUCT BEING 3 TO 50 PERCENT BY WEIGHT OF THE PRODUCT.
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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) | 1962-09-28 | 1963-03-30 | 1963-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-28 | 1967-03-30 | 1967-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-28 | 1971-03-30 | 1971-09-29 | $7700.00 | Window Closed / Lapsed |