US2606204A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of dinitriles
Assignee: EIDP Inc
•
Filing: 1950-10-13
•
Granted: 1952-08-05
•
Expires: 1970-10-13
Abstract
No abstract record available.
Inventors
- 👤 Milton J Hogsed
- 👤 Robert M Joyce
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:47
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/44; C07C209/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
10 words
A PROCESS FOR THE PREPARATION OF 5,8-DIMETHYLDODECAMTHYLENEDIAMINE HAVING THE FORMULA
Claim 2
Dependent Claim
10 words
A PROCESS FOR THE PREPARATION OF 5,8-DIMETHYLDODECAMTHYLENEDIAMINE HAVING THE FORMULA
References Cited (Backward Citations)
US2524833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |