US3399952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallized polyolefin dyeing with 1, 4-dihydroxy-or 1, 4, 5, 8-tetrahydroxy-halogenated anthraquinones substituted in the 2-position by phenoxy, alkylmimno, anilino and nu-alkylanilino groups
Assignee: Mitsui Chemical Industry Co Ltd
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Filing: 1966-02-21
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Granted: 1968-09-03
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Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Hosoda Yutaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:21
CPC Classifications
C; C09; C09B; C09B1/00; C09B1/50; C09B1/51; C09B1/514; C09B1/515; Y; Y10; Y10S; Y10S8/00; Y10S8/92; Y10S8/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB777377A
Cited
US2984634A
Cited
FR1306040A
Cited
US3203752A
Cited
US3164438A
Cited
US3238189A
Cited
FR1371626A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-03 | 1972-03-04 | 1972-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-03 | 1976-03-04 | 1976-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-03 | 1980-03-04 | 1980-09-03 | $7700.00 | Window Closed / Lapsed |