Patent US3287538A successfully refreshed from Google Patents.
Patent US3725189A successfully refreshed from Google Patents.
US3725189A
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Non tear seams produced by radio frequency means
Assignee: Fitesa Simpsonville Inc
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Filing: 1970-09-11
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Granted: 1973-04-03
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Expires: 1990-09-11
Abstract
Abstract LAYERS OF FABRIC CONTAINING THERMOPLASTIC FIBERS ARE BONDED TOGETHER BY RADIO FREQUENCY MEANS ALONG A SEAM, THE SEAM BEING COMPRISED OF FUSED THERMOPLASTIC FIBERS WITH THE INTENSITY OF FUSION VARYING FROM A MAXIMUM ALONG A MAXIMUM BOND AREA TO A MINIMUM ALONG THE EDGE OF THE SEAM TO PREVENT THE FORMATION OF A TEAR LINE BETWEEN THE FABRIC AND THE SEAM.
Inventors
- 👤 L Gidge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:57
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; B; B29; B29C; B29C65/00; B29C65/02; B29C65/04; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/32; B29C66/324; B29C66/347; B29C66/3472; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/72; B29C66/729; B29C66/7294; B29C66/80; B29C66/81; B29C66/812; B29C66/8122; B29C66/814; B29C66/8141; B29C66/81411; B29C66/81413; B29C66/81427; B29C66/8145; B29C66/81457; B29C66/818; B29C66/8182; B29C66/81821; B29C66/8187; B29C66/81871; B29C66/83; B29C66/832; B29C66/8322; B29C66/71; B29C66/8126; B29C66/81262; B29C66/81415; B29C66/81419; B29C66/81421; B29C66/81422; B29K; B29K2313/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24826; Y10T442/00; Y10T442/60; Y10T442/659; Y10T442/671; Y10T442/69
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |