Patent US3525653A successfully refreshed from Google Patents.
US3525653A
Expired / Lapsed
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Reduction of pilling of fabrics with ultrasonic energy
Assignee: Imperial Chemical Industries Ltd
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Filing: 1969-08-13
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Granted: 1970-08-25
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Expires: 1989-08-13
Abstract
No abstract record available.
Inventors
- 👤 Geoffrey Windle Manock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:51
CPC Classifications
D; D06; D06M; D06M10/00; D06M10/02; B; B29; B29C; B29C65/00; B29C65/02; B29C65/08; B29C65/088; B29C66/00; B29C66/70; B29C66/71; B29C66/72; B29C66/729; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C65/083; B29C65/085; B29C66/81; B29C66/814; B29C66/8145; B29C66/81463; B29C66/81469; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29K; B29K2067/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |