US1500844A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil-soluble dyestuff
Assignee: Individual
•
Filing: 1921-02-12
•
Granted: 1924-07-08
•
Expires: 1941-02-12
Abstract
No abstract record available.
Inventors
- 👤 Plauson Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:28
CPC Classifications
C; C09; C09D; C09D201/00; C09D201/02; C09B; C09B39/00; Y; Y10; Y10S; Y10S534/00; Y10S534/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1927-07-08 | 1928-01-07 | 1928-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-07-08 | 1932-01-07 | 1932-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-07-08 | 1936-01-07 | 1936-07-08 | $7700.00 | Window Closed / Lapsed |