US2602080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallized ortho-hydroxy monoazo dyestuffs
Assignee: GAF Chemicals Corp
•
Filing: 1947-10-22
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Granted: 1952-07-01
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Expires: 1967-10-22
Abstract
No abstract record available.
Inventors
- 👤 Harry W Grimmel
- 👤 Heinrich H Bestehorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:37
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/02; C09B45/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A METALLIZED ORTHO-HYDROXY MONOAZO DYESTUFF OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
9 words
A METALLIZED ORTHO-HYDROXY MONOAZO DYESTUFF OF THE GENERAL 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) | 1955-07-01 | 1955-12-31 | 1956-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-01 | 1959-12-31 | 1960-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-01 | 1963-12-31 | 1964-07-01 | $7700.00 | Window Closed / Lapsed |