Patent US3338880A successfully refreshed from Google Patents.
US3338880A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disazo dyestuffs
Assignee: Novartis AG
•
Filing: 1963-08-07
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Granted: 1967-08-29
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Expires: 1983-08-07
Abstract
No abstract record available.
Inventors
- 👤 Favre Francois
- 👤 Bossard Werner
- 👤 Voltz Jacques
- 👤 Hans E Wegmuller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:32
CPC Classifications
C; C09; C09B; C09B62/00; C09B62/002; C09B62/006; C09B62/01; C09B31/00; C09B31/02; C09B31/06; C09B31/068; C09B43/00; C09B43/30; C09B43/32; C09B43/325; Y; Y10; Y10S; Y10S534/00; Y10S534/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
13 words
A DYESTUFF SELECTED FROM THE GROUP CONSISTING OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US3213077A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |