US2398473A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Textile apparatus
Assignee: Celanese Corp
•
Filing: 1943-10-26
•
Granted: 1946-04-16
•
Expires: 1963-10-26
Abstract
No abstract record available.
Inventors
- 👤 Elmer R Stahl
- 👤 Frank W Schulte
- 👤 William J Elvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:52
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; B; B65; B65H; B65H63/00; B65H63/02; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/541; Y10T83/869; Y10T83/8765; Y10T83/8768
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1949-04-15 | 1949-10-15 | 1950-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-15 | 1953-10-15 | 1954-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-15 | 1957-10-15 | 1958-04-16 | $7700.00 | Window Closed / Lapsed |