US3065251A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted phenazasilines
Assignee: Merck and Co Inc
•
Filing: 1959-08-31
•
Granted: 1962-11-20
•
Expires: 1979-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert E Jones
- 👤 Wasserman David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:35
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0803; C07F7/081; C07F7/0812; C07F7/0816; C07F1/00; C07F1/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
9 words
A PROCESS FOR PREPARING A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
1 words
4,4''-DIBROMO-N-ETHYL-2,2''-DILITHIODIPHENYLAMINE.
Claim 4
Dependent Claim
1 words
4,4''-DIBROMO-N-ETHYL-2,2''-DILITHIODIPHENYLAMINE.
Claim 5
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 6
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |