US3736209A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for making pile fabric
Assignee: Hercules LLC
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Filing: 1970-10-16
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Granted: 1973-05-29
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Expires: 1990-10-16
Abstract
Abstract THIS INVENTION RELATES TO APPARATUS FOR MAKING PILE FABRIC WHEREIN THERMOPLASTIC PILE YARN IS FUSION BONDED TO A THERMOPLASTIC BACKING BY MEANS OF SONIC ENERGY, THEREBY EFFECTING LOCALIZED HEATING OF THE PILE YARN AND BACKING AT THE POINTS OF CONTACT WITHOUT LOSS OF ORIENTATION IN EITHER THE PILE YARN OR THE BACKING, IF AN ORIENTED BACKING IS USED, BETWEEN THE BOND POINTS.
Inventors
- 👤 C Carpenter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:07
CPC Classifications
D; D04; D04H; D04H11/00; D04H11/04; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C65/083; B29C65/086; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/40; B29C66/47; B29C66/69; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81413; B29C66/81415; B29C66/81417; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/02; B29C66/024; B29C66/0242; B29C66/72; B29C66/729; B29C66/731; B29C66/7311; B29C66/73115; B29C66/73116; B29C66/8145; B29C66/81463; B29C66/81467; B29C66/81469; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83415
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |