Patent US2992204A successfully refreshed from Google Patents.
US2992204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyvinyl alcohol filaments of improved dye affinity
Assignee: Airco Inc
•
Filing: 1958-11-28
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Granted: 1961-07-11
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Expires: 1978-11-28
Abstract
No abstract record available.
Inventors
- 👤 Osugi Tetsuro
- 👤 Tanabe Kenichi
- 👤 Ohno Yasuji
- 👤 Suda Teruo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:56
CPC Classifications
C; C08; C08L; C08L29/00; C08L29/14; C08F; C08F8/00; C08F8/48; C08J; C08J5/00; C08J5/18; D; D01; D01F; D01F6/00; D01F6/44; D01F6/50; Y; Y10; Y10S; Y10S8/00; Y10S8/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
AN ORIENTED SYNTHETIC LINER POLYMERIC FILAMENT CONSISTING OF POYLMER BLEND OF POLYVINYL NONAMINO-ACETAL WHICH CONSISTS OF VINYL ALCHOL
Claim 2
Dependent Claim
18 words
AN ORIENTED SYNTHETIC LINER POLYMERIC FILAMENT CONSISTING OF POYLMER BLEND OF POLYVINYL NONAMINO-ACETAL WHICH CONSISTS OF VINYL ALCHOL
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) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |