US3301845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic metal containing 8-hydroxyquinoline azo dyestuffs
Assignee: Kanegafuchi Spinning Co Ltd
•
Filing: 1965-08-16
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Granted: 1967-01-31
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Expires: 1985-08-16
Abstract
No abstract record available.
Inventors
- 👤 Hosokawa Kenjiro
- 👤 Kojima Yasushi
- 👤 Mori Motoo
- 👤 Suzuki Masaaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:17
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/02; D06P3/04; D06P3/32; D06P3/326; C; C07; C07F; C07F11/00; C07F11/005; C07F7/00; C07F7/003; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/3804; C07F9/3808; C07F9/3817; C09; C09B; C09B1/00; C09B1/50; C09B1/503; C09B1/51; C09B1/515; C09B1/5155; C09B1/54; C09B1/545; C09B11/00; C09B11/04; C09B11/06; C09B11/10; C09B11/22; C09B35/00; C09B35/02; C09B35/039; C09B35/24; C09B45/00; C09B45/48; C09B5/00; C09B5/24; C09B5/42; C09B63/00; C09B63/005; C09B67/00; C09B67/0032
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A WATER-SOLUBLE THERMOSTABLE CATIONIC COMPLEX METAL COMPOUND OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE DYES OF THE FORMULAE
Claim 2
Dependent Claim
21 words
A WATER-SOLUBLE THERMOSTABLE CATIONIC COMPLEX METAL COMPOUND OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE DYES OF THE FORMULAE
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |