US3277119A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkyl and alkoxyalkyl esters of 1-amino-4-acryloylamino-2-anthraquinone carboxylic acid
Assignee: BASF SE
•
Filing: 1962-12-21
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Granted: 1966-10-04
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Expires: 1982-12-21
Abstract
No abstract record available.
Inventors
- 👤 Beyer Karl-Heinz
- 👤 Gulbins Klaus
- 👤 Lange Guenter
- 👤 Louis Gerd
- 👤 Weidinger Hans
- 👤 Wilhelm Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:41
CPC Classifications
D; D06; D06P; D06P1/00; D06P1/0056; D06P1/006; C; C08; C08F; C08F20/00; C08F20/02; C08F20/52; C08F283/00; C08F283/01; C08F291/00; C09; C09B; C09B1/00; C09B1/16; C09B1/20; C09B1/36; C09B1/40; C09B62/00; C09B62/44; C09B62/465; C09B62/467; C09B69/00; C09B69/10; C09B69/101; D06L; D06L4/00; D06L4/60; D06L4/657; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/922
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)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |