Patent US3046130A successfully refreshed from Google Patents.
US3046130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Photographic materials containing a chemical sensitizer
Assignee: GAF Chemicals Corp
•
Filing: 1960-05-12
•
Granted: 1962-07-24
•
Expires: 1980-05-12
Abstract
No abstract record available.
Inventors
- 👤 Dersch Fritz
- 👤 Angelus Millet R De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:08
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D215/00; C07D215/02; C07D215/16; C07D215/36; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; G; G03; G03C; G03C1/00; G03C1/005; G03C1/04; G03C1/043
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A PHOTOGRAPHIC DEVELOPER SOLUTION COMPRISING A SILVER HALIDE DEVELOPING AGENT, AN ALKALI, AN ANTI-OXIDANT AND AN ANTIFOGGANT CONTAINING AS A SPEED INCREASING AGENT A WATER-SOLUBLE HETEROCYCLIC POLYOXYALKYLENE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING GENERAL FORMULA:
Claim 2
Dependent Claim
40 words
A PHOTOGRAPHIC DEVELOPER SOLUTION COMPRISING A SILVER HALIDE DEVELOPING AGENT, AN ALKALI, AN ANTI-OXIDANT AND AN ANTIFOGGANT CONTAINING AS A SPEED INCREASING AGENT A WATER-SOLUBLE HETEROCYCLIC POLYOXYALKYLENE COMPOUND SELECTED FROM THE GROUP CONSISTING OF THOSE HAVING THE FOLLOWING GENERAL FORMULA:
References Cited (Backward Citations)
US2944902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |