US3285906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monoazo pyrazole dyes
Assignee: Stange Co
•
Filing: 1964-02-03
•
Granted: 1966-11-15
•
Expires: 1984-02-03
Abstract
No abstract record available.
Inventors
- 👤 Wilbur H Kretlow
- 👤 Jerome L Mostek
- 👤 James S Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:52
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/18; C07D231/20; C07D231/22; C07D231/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN ORANGE DYE HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
AN ORANGE DYE HAVING THE FORMULA:
References Cited (Backward Citations)
US2199043A
Cited
US2330828A
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US2384734A
Cited
US2457823A
Cited
US2435182A
Cited
US2477767A
Cited
US2477768A
Cited
US2610103A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-14 | 1970-05-16 | 1970-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-14 | 1974-05-16 | 1974-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-14 | 1978-05-16 | 1978-11-15 | $7700.00 | Window Closed / Lapsed |