US2047968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoplastic compositions and method of preparing the same
Assignee: Celanese Corp
•
Filing: 1933-03-29
•
Granted: 1936-07-21
•
Expires: 1953-03-29
Abstract
No abstract record available.
Inventors
- 👤 Jenett Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:55
CPC Classifications
C; C08; C08L; C08L1/00; C08L1/08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21
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) | 1939-07-21 | 1940-01-20 | 1940-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-07-21 | 1944-01-20 | 1944-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-07-21 | 1948-01-20 | 1948-07-21 | $7700.00 | Window Closed / Lapsed |