US3312682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Azo and anthraquinone dyes containing alkoxalyl and aryloxalyl mono- and diesters ofo- and p-dihydroxyphenyl groups
Assignee: Polaroid Corp
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Filing: 1965-12-27
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Granted: 1967-04-04
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Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Myron S Simon
- 👤 Stanley H Mervis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:43
CPC Classifications
C; C09; C09B; C09B43/00; C09B43/18; C09B1/00; C09B1/16; C09B1/20; C09B1/26; C09B1/28; C09B1/285; C09B1/50; C09B1/51; C09B1/515; C09B1/5155; C09B33/00; C09B33/02; C09B33/06; C09B5/00; C09B5/24; C09B5/2409; C09B5/2436; C09B5/2445; C09B5/2454; C09B5/2463; C09B5/2472; G; G03; G03C; G03C8/00; G03C8/02; G03C8/08; G03C8/10; G03C8/12; G03C8/14; G03C8/16; G03C8/18; Y; Y10; Y10S; Y10S430/00; Y10S430/156
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A DYE OF THE FORMULA:
Claim 2
Dependent Claim
5 words
A DYE OF THE FORMULA:
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) | 1970-04-03 | 1970-10-03 | 1971-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-03 | 1974-10-03 | 1975-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-03 | 1978-10-03 | 1979-04-04 | $7700.00 | Window Closed / Lapsed |