Patent US3190871A successfully refreshed from Google Patents.
US3190871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chj soah
Assignee: —
•
Filing: —
•
Granted: 1965-06-22
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Expires: 1982-06-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:21
CPC Classifications
C; C09; C09B; C09B44/00; C09B44/02; C09B44/04; C09B67/00; C09B67/0033; C09B67/0046; C09D; C09D11/00; C09D11/30; C09D11/32; C09D11/328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
WATER-SOLUBLE DYE OF THE FORMULA
Claim 2
Dependent Claim
5 words
WATER-SOLUBLE DYE OF THE FORMULA
References Cited (Backward Citations)
US2955108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-21 | 1968-12-21 | 1969-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-21 | 1972-12-21 | 1973-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-21 | 1976-12-21 | 1977-06-22 | $7700.00 | Window Closed / Lapsed |