US2427993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of rayon
Assignee: Industrial Rayon Corp
•
Filing: 1944-07-26
•
Granted: 1947-09-23
•
Expires: 1964-07-26
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Mclellan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:53
CPC Classifications
D; D01; D01F; D01F11/00; D01F11/02; B; B65; B65H; B65H51/00; B65H51/20; B65H51/22; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0454; D01D5/00; D01D5/12; D01D5/14; D02; D02J; D02J1/00; D02J1/22; D02J1/228; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-22 | 1951-03-24 | 1951-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-22 | 1955-03-24 | 1955-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-22 | 1959-03-24 | 1959-09-23 | $7700.00 | Window Closed / Lapsed |