US2688039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogen-containing di-(substituted phenyl)-thioureas
Assignee: CIBA PHARM PROD Inc
•
Filing: 1952-02-08
•
Granted: 1954-08-31
•
Expires: 1972-02-08
Abstract
No abstract record available.
Inventors
- 👤 Charles F Huebner
- 👤 Caesar R Scholz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:49
CPC Classifications
C; C07; C07C; C07C335/00; C07C335/04; C07C335/16; C07C335/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A DI-(P-SUBSTITUTED PHENYL)-THIOUREA OF THE FORMULA
Claim 2
Dependent Claim
6 words
A DI-(P-SUBSTITUTED PHENYL)-THIOUREA OF THE FORMULA
References Cited (Backward Citations)
AT143641B
Cited
US2061243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-30 | 1958-03-01 | 1958-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-30 | 1962-03-01 | 1962-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-30 | 1966-03-01 | 1966-08-31 | $7700.00 | Window Closed / Lapsed |