Patent US2724247A successfully refreshed from Google Patents.
US2689199A
Expired / Lapsed
US
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Nonwoven fabrics
Assignee: Individual
•
Filing: 1950-06-27
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Granted: 1954-09-14
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Expires: 1970-06-27
Abstract
No abstract record available.
Inventors
- 👤 Mario R Pesce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:08
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/56; Y; Y10; Y10S; Y10S264/00; Y10S264/75; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T442/00; Y10T442/60; Y10T442/608; Y10T442/627; Y10T442/631; Y10T442/659; Y10T442/668; Y10T442/669; Y10T442/697
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A THIN, FLEXIBLE SHEET CONSISTING OF AN INNER THIN LAMINATION COMPOSED OF UNWOVEN GLASS FIBERS AND OUT LAMINATIONS EACH CONSISTING OF CURLY, ENTANGLED, THERMOPLASTIC RESINOUS FILAMENTS BONDED TO EACH OTHER BY HEAT AND PRESSURE, THE VOLUME OF THE GLASS FIBERS BEING LESS THAN THAT OF THE THERMOPLASTIC FILAMENTS, AND ALL THE LAMINATIONS BEING ADHERENT.
Claim 2
Dependent Claim
54 words
A THIN, FLEXIBLE SHEET CONSISTING OF AN INNER THIN LAMINATION COMPOSED OF UNWOVEN GLASS FIBERS AND OUT LAMINATIONS EACH CONSISTING OF CURLY, ENTANGLED, THERMOPLASTIC RESINOUS FILAMENTS BONDED TO EACH OTHER BY HEAT AND PRESSURE, THE VOLUME OF THE GLASS FIBERS BEING LESS THAN THAT OF THE THERMOPLASTIC FILAMENTS, AND ALL THE LAMINATIONS BEING ADHERENT.
References Cited (Backward Citations)
US2459803A
Cited
US2483404A
Cited
US2483405A
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US2538899A
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GB621950A
Cited
US2543101A
Cited
US2476283A
Cited
US2476282A
Cited
US2544797A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |