US3245980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 3-diketone dyestuffs
Assignee: Honeywell International Inc
•
Filing: 1963-02-28
•
Granted: 1966-04-12
•
Expires: 1983-02-28
Abstract
No abstract record available.
Inventors
- 👤 Paul L Stright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:38
CPC Classifications
C; C09; C09B; C09B45/00; D; D06; D06P; D06P3/00; D06P3/79; D06P3/795; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928; Y10S8/938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
MONOAZO COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
MONOAZO COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2831827A
Cited
US2726237A
Cited
US3043828A
Cited
US2822359A
Cited
US2801225A
Cited
US2857373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |