US3365527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing synthetic fiber of polyvinyl alcohol having excellent properties
Assignee: Kurashiki Rayon Co Ltd
•
Filing: 1963-12-30
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Granted: 1968-01-23
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Expires: 1983-12-30
Abstract
No abstract record available.
Inventors
- 👤 Tanabe Kenichi
- 👤 Ashikaga Tadao
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:02
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/14
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |