US3497419A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of orienting fibres by means of ac and dc voltages
Assignee: Canadian Patents and Development Ltd
•
Filing: 1967-02-17
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Granted: 1970-02-24
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Expires: 1987-02-17
Abstract
No abstract record available.
Inventors
- 👤 Albert A Winer
- 👤 Henry M Woodrooffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:50
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29B; B29B15/00; B29B15/08; B29C70/58; C; C04; C04B; C04B20/00; C04B20/0048; C04B20/02; C04B20/08; D; D21; D21F; D21F11/00; H; H01; H01B; H01B3/00; H01B3/02; H01B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2418479A
Cited
US2998048A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |