US1950907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose organic ester composition comprising a phthalic acid ester of a monoether of hydroquinone
Assignee: Eastman Kodak Co
•
Filing: 1932-07-29
•
Granted: 1934-03-13
•
Expires: 1952-07-29
Abstract
No abstract record available.
Inventors
- 👤 Cyril J Staud
- 👤 Jr Thomas F Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:40
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31634; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
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) | 1937-03-12 | 1937-09-11 | 1938-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-03-12 | 1941-09-11 | 1942-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-03-12 | 1945-09-11 | 1946-03-13 | $7700.00 | Window Closed / Lapsed |