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US2992958A
Expired / Lapsed
US
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Method of welding nylon and similar fabrics made of synthetic fibers by high frequency energy
Assignee: Individual
•
Filing: 1957-08-16
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Granted: 1961-07-18
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Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Yamaguchi Sakuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C65/00; B29C65/02; B29C65/04; B29C66/20; B29C66/21; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/72; B29C66/729; B29C66/71; B29K; B29K2001/00; B29K2001/08; B29K2001/12; B29K2029/00; B29K2029/04; B29K2067/00; B29K2105/00; B29K2105/0005; B29K2313/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A METHOD OF WELDING FABRICS MADE OF SYNTHETIC FIBERS WHICH COMPRISES SPOT WELDING THE FABRIC BETWEEN ELECTRODES BY APPLYING HIGH FREQUENCY ELECTRIC ENERGY TO AT LEAST TWO SUPERPOSED LAYERS OF FABRIC WHILE THEY ARE HELD STATIONARY RELATIVE TO THE ELECTRODES AND ARE MOISTENED WITH AN AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND MIXTURES OF WATER AND GLYCERINE.
Claim 2
Independent Claim
60 words
A METHOD OF WELDING FABRICS MADE OF SYNTHETIC FIBERS WHICH COMPRISES SPOT WELDING THE FABRIC BETWEEN ELECTRODES BY APPLYING HIGH FREQUENCY ELECTRIC ENERGY TO AT LEAST TWO SUPERPOSED LAYERS OF FABRIC WHILE THEY ARE HELD STATIONARY RELATIVE TO THE ELECTRODES AND ARE MOISTENED WITH AN AQUEOUS LIQUID SELECTED FROM THE GROUP CONSISTING OF WATER AND MIXTURES OF WATER AND GLYCERINE.
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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) | 1964-07-17 | 1965-01-16 | 1965-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-17 | 1969-01-16 | 1969-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-17 | 1973-01-16 | 1973-07-18 | $7700.00 | Window Closed / Lapsed |