US2674113A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for liquid treatment of warps of closely spaced parallel rayon threads
Assignee: Akzona Inc
•
Filing: 1952-06-11
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Granted: 1954-04-06
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Expires: 1972-06-11
Abstract
No abstract record available.
Inventors
- 👤 Schrenk Hans Alwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:59
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B3/20; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0463; D06B3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE700633C
Cited
US2516268A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |