US3364029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic antihalation components
Assignee: Eastman Kodak Co
•
Filing: 1964-07-16
•
Granted: 1968-01-16
•
Expires: 1984-07-16
Abstract
No abstract record available.
Inventors
- 👤 John A Haefner
- 👤 Thomas L Abbott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:48
CPC Classifications
C; C07; C07D; C07D215/00; C07D215/02; C07D215/16; C07D215/20; C07D215/24; C07D215/26; C07D215/30; C07D215/48; G; G03; G03C; G03C1/00; G03C1/76; G03C1/825; G03C1/83; G03C1/833
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT HAVING THEREON AT LEAST ONE LIGHT SENSITIVE COATING AND HAVING ON THE SAME SUPPORT AT LEAST ONE LAYER CONTAINING AN 8-HYDROXYQUINOLINE VANADIUM COMPLEX WHICH BECOMES SUBSTANTIALLY COLORLESS UNDER ALKALINE CONDITIONS.
Claim 2
Dependent Claim
36 words
A PHOTOGRAPHIC ELEMENT COMPRISING A SUPPORT HAVING THEREON AT LEAST ONE LIGHT SENSITIVE COATING AND HAVING ON THE SAME SUPPORT AT LEAST ONE LAYER CONTAINING AN 8-HYDROXYQUINOLINE VANADIUM COMPLEX WHICH BECOMES SUBSTANTIALLY COLORLESS UNDER ALKALINE CONDITIONS.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |