US3043690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel photographic products, compositions, and processes
Assignee: Polaroid Corp
•
Filing: 1960-10-12
•
Granted: 1962-07-10
•
Expires: 1980-10-12
Abstract
No abstract record available.
Inventors
- 👤 Green Milton
- 👤 Howard G Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:16
CPC Classifications
G; G03; G03C; G03C5/00; G03C5/26; G03C5/29; G03C5/30; G03C5/3021
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
28 words
A PHOTOGRAPHIC PROCESS WHICH COMPRISES THE STEPS OF DEVELOPING AN EXPOSED SILVERR HALIDE EMULSION WITH AN AQUEOUS ALKALINE SOLUTION OF A SILVER HALIDE DEVELOPING AGENT OF THE FORMULA:
References Cited (Backward Citations)
US2543181A
Cited
US2647056A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |