US2899430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chxch
Assignee: —
•
Filing: —
•
Granted: 1959-08-11
•
Expires: 1976-08-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:53
CPC Classifications
C; C09; C09B; C09B23/00; C09B23/02; C09B23/10; C09B23/14; C09B23/145; C09B23/146
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
12 words
A DYE SELECTED FROM THE GROUP CHARACTERIZED BY THE FOLLOWING GENERAL FORMULA
References Cited (Backward Citations)
US2353164A
Cited
US2340882A
Cited
US2166736A
Cited
US2263749A
Cited
US2322015A
Cited
US2336843A
Cited
US2336463A
Cited
US2495260A
Cited
US2338782A
Cited
US2320654A
Cited
US2330203A
Cited
US2692829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |