US2535121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monazo dye
Assignee: EIDP Inc
•
Filing: 1949-04-12
•
Granted: 1950-12-26
•
Expires: 1969-04-12
Abstract
No abstract record available.
Inventors
- 👤 Carson Boyce Galloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:27
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/02; C09B45/14; C09B45/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
AS A NEW COMPOSITION OF MATTER THE CHROMABLE MONAZO DYE HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
14 words
AS A NEW COMPOSITION OF MATTER THE CHROMABLE MONAZO DYE HAVING THE GENERAL 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) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |