Patent US3342797A successfully refreshed from Google Patents.
US3342797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-soluble reactive dyes containing halopyrimidine-5-carboxamido groups
Assignee: Sandoz AG
•
Filing: 1964-09-28
•
Granted: 1967-09-19
•
Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Guenthard Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:25
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/02; C09B62/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
REACTIVE DYES OF THE FORMULA
Claim 2
Dependent Claim
5 words
REACTIVE DYES OF THE 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) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |