Patent US3447939A successfully refreshed from Google Patents.
US3447939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compounds dissolved in cyclic amine oxides
Assignee: Eastman Kodak Co
•
Filing: 1966-09-02
•
Granted: 1969-06-03
•
Expires: 1986-09-02
Abstract
No abstract record available.
Inventors
- 👤 Dee Lynn Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:24
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/22; C07D295/24; A; A22; A22C; A22C13/00; A22C13/0013; B; B01; B01D; B01D67/00; B01D67/0002; B01D67/0009; B01D67/0011; C08; C08B; C08B1/00; C08B1/003; C08B1/02; C08B11/00; C08B11/20; C08B15/00; C08B15/05; C08B15/06; C08B37/00; C08G; C08G81/00; C08J; C08J3/00; C08J3/005; C08K; C08K5/00; C08K5/16; C08K5/32; C08K5/34; C08K5/3412; C08K5/35; C08L; C08L1/00; C08L5/00; C08L5/14; D; D06; D06M; D06M13/00; D06M13/322; D06M13/388; D06M15/00; D06M15/01; D06M15/03; D06M15/05; D06M15/19; D06M15/21; D06M15/327; D06M15/333; D06M15/37; D06M15/39; D21; D21H; D21H17/00; D21H17/20; D21H17/21; D21H17/24; D21H17/25; D21H19/00; D21H19/10; D21H19/14; D21H19/34; G; G03; G03C; G03C1/00; G03C1/76; G03C1/795
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2179181A
Cited
US3253058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |