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Patent US3681157A successfully refreshed from Google Patents.
US3681157A
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Method for forming an integrated mass
Assignee: Owens Corning
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Filing: 1970-03-12
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Granted: 1972-08-01
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Expires: 1990-03-12
Abstract
Abstract METHOD FOR FORMING FILBROUS MATS OR INTERGRATED FIBROUS MASSES FOR A COLLECTION OF LINEAR BODIES BY PROVIDING A PLURALITY OF MAT-LIKE LAYERS WHICH MAY RESULT FROM THE DEPOSITION OF LINEAR BODIES ON A COLLECTING SURFACE, INTERLEAFING BINDER IN FILM FORM BETWEEN THELAYERS, AND ACTIVATING THE FILM TO DISPERSE THE BINDER AMONG THE INDIVIDUAL BODIES TO BIND THEM INTO AN INTERGRATED FIBROUS MASS, SUCH AS AIR FILTER MATS, INSLUATING MATS, OR THE LIKE.
Inventors
- 👤 George E Smock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:54
CPC Classifications
D; D04; D04H; D04H3/00; D04H3/08; D04H3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |