US2435905A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Soluble basic dyes
Assignee: GAF Chemicals Corp
•
Filing: 1946-01-03
•
Granted: 1948-02-10
•
Expires: 1966-01-03
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:34
CPC Classifications
C; C09; C09B; C09B69/00; C09B69/02; C09B69/06; C09B11/00; C09B11/04; C09B11/10; C09B11/12; C09B11/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1841876A
Cited
US1978755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-09 | 1951-08-11 | 1952-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-09 | 1955-08-11 | 1956-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-09 | 1959-08-11 | 1960-02-10 | $7700.00 | Window Closed / Lapsed |