US3558381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making buttonholes
Assignee: WILLIAM D COLIANNI
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Filing: 1967-05-18
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Granted: 1971-01-26
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Expires: 1987-05-18
Abstract
Abstract BUTTONHOLES ARE FORMED IN SYNTHETIC TEXTILE MATERIAL, EITHER PURE OR BLENDED WITH NATURAL FILAMENTS, BY USING ULTRASONIC ENERGY TO FUSE OR BOND THE TEXTILE MATERIAL IN AREAS WHERE BUTTONHOLES ARE TO BE LOCATED AND THEN SLITTING THESE ELONGATED AREAS EITHER AFTER OR DURING ULTRASONIC BONDING. IF MULTIPLE THICKNESS OF MATERIAL ARE INVOLVED THEY WILL BE FUSED OR BONDED TOGETHER WHEN SUBJECTED TO ULTRASONIC ENERGY.
Inventors
- 👤 William D Colianni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:29
CPC Classifications
A; A41; A41H; A41H25/00; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/1056; Y10T156/1057; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45602; Y10T24/45759
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |