Patent US3073813A successfully refreshed from Google Patents.
US3073813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Complex metal compounds of water-
Assignee: —
•
Filing: —
•
Granted: 1963-01-15
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Expires: 1980-01-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:28
CPC Classifications
C; C09; C09B; C09B45/00; C09B45/02; C09B45/14; C09B45/22; C09B45/18; C09D; C09D11/00; C09D11/02; C09D11/03; C09D11/037; C09D11/30; C09D11/32; C09D11/328; G; G03; G03G; G03G9/00; G03G9/08; G03G9/09; G03G9/0906; G03G9/091; Y; Y10; Y10S; Y10S8/00; Y10S8/92
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A COMPLEX METAL COMPOUND CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, COBALT NICKEL AND MANGANESE, OF A WATER-INSOLUBLE AZO-DYESTUFF HAVING THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
27 words
A COMPLEX METAL COMPOUND CONTAINING A METAL SELECTED FROM THE GROUP CONSISTING OF COPPER, COBALT NICKEL AND MANGANESE, OF A WATER-INSOLUBLE AZO-DYESTUFF HAVING THE FOLLOWING 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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |