US2265303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of plastic compositions
Assignee: Celanese Corp
•
Filing: 1938-03-24
•
Granted: 1941-12-09
•
Expires: 1958-03-24
Abstract
No abstract record available.
Inventors
- 👤 Moss William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:46
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/18; Y; Y10; Y10S; Y10S159/00; Y10S159/10; Y10S425/00; Y10S425/101
Claims Analysis
Total Claims: 0
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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) | 1944-12-08 | 1945-06-09 | 1945-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-08 | 1949-06-09 | 1949-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-08 | 1953-06-09 | 1953-12-09 | $7700.00 | Window Closed / Lapsed |