US3013020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n'-bis-phenyl-alkylene-diamines
Assignee: Bayer Corp
•
Filing: 1958-01-24
•
Granted: 1961-12-12
•
Expires: 1978-01-24
Abstract
No abstract record available.
Inventors
- 👤 Otis E Fancher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:00
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BIS-AMINES OF THE FORMULA
Claim 2
Dependent Claim
12 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BIS-AMINES OF THE FORMULA
Claim 3
Dependent Claim
1 words
N,N''-DIPIPERONYL-5,11-DIAMINOPENTADECANE.
Claim 4
Dependent Claim
1 words
N,N''-DIPIPERONYL-5,11-DIAMINOPENTADECANE.
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) | 1964-12-11 | 1965-06-12 | 1965-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-11 | 1969-06-12 | 1969-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-11 | 1973-06-12 | 1973-12-12 | $7700.00 | Window Closed / Lapsed |