Patent US3045019A successfully refreshed from Google Patents.
US3045019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peridicarboxylic acid imide dyestuffs containing at least one isothiocyanate group
Assignee: BASF Schweiz AG
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Filing: 1960-06-21
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Granted: 1962-07-17
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Expires: 1980-06-21
Abstract
No abstract record available.
Inventors
- 👤 Bosshard Hans Heinrich
- 👤 Zollinger Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:38
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/44; C09B62/78
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A PERIDICARBOXYLIC ACID DIIMIDE DYESTUFF OF THE FORMULA
Claim 2
Dependent Claim
8 words
A PERIDICARBOXYLIC ACID DIIMIDE DYESTUFF OF THE FORMULA
References Cited (Backward Citations)
US2409851A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-16 | 1966-01-15 | 1966-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-16 | 1970-01-15 | 1970-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-16 | 1974-01-15 | 1974-07-17 | $7700.00 | Window Closed / Lapsed |