US3817802A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic sewing
Assignee: Ultrasonic Systems Inc
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Filing: 1971-06-21
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Granted: 1974-06-18
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Expires: 1991-06-21
Abstract
Abstract This invention relates to the fabrication of articles from generally thermoplastic sheet material using ultrasonic energy and other procedures such that a pattern of the shape that the article is to take is initially welded with the welding of the two or more sheets comprising the article and the sheets do not have to be first cut to the shape of the article to be formed. The pattern is then removed at its welded joint with the sheets. If desired the pattern and sheets of material are simultaneously cut and welded with the pattern thereafter removed, kits and their method of assembly are also disclosed.
Inventors
- 👤 R Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:25
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/41; B29C66/45; A; A41; A41D; A41D27/00; A41D27/24; A41D27/245; B29C65/00; B29C65/02; B29C65/08; B29C65/74; B29C65/743; B29C65/7437; B29C66/004; B29C66/0042; B29C66/0044; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/21; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/84; B29C66/845; B29C66/861; B29C66/8616; B29C66/452; B29C66/71; B29C66/72; B29C66/729; B29C66/7292; B29C66/735; B29C66/7352; B29C66/73521; B29C66/90; B29C66/95; B29C66/951; B29C66/9512; B29C66/9513; B29C66/9516; B29C66/9517; B29L; B29L2031/00; B29L2031/48; B29L2031/52; B29L2031/5209; B29L2031/5218
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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |