Patent US3232931A successfully refreshed from Google Patents.
US3232931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber-reactive metal phthalocyanine dyes
Assignee: EIDP Inc
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Filing: 1962-11-28
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Granted: 1966-02-01
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Rothman Leonard Aaron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:58
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/36; C09B62/42; C09B62/022; C09B62/036
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
FIBER-REACTIVE DYES OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
6 words
FIBER-REACTIVE DYES OF THE FOLLOWING 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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |