US3299041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ortho- and para-dihydroxyphenyl substituted monoazo dyes
Assignee: Polaroid Corp
•
Filing: 1964-04-15
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Granted: 1967-01-17
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Expires: 1984-04-15
Abstract
No abstract record available.
Inventors
- 👤 Green Milton
- 👤 Myron S Simon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:28
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/02; G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; G03C8/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
AN AZO DYE DEVELOPER OF THE FORMULA
Claim 2
Dependent Claim
7 words
AN AZO DYE DEVELOPER OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |