US3200152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
alpha,alpha'-di-(substituted and unsubstituted amino phenyl) alpha, alpha, alpha'-tetra alkyl-p-xylene
Assignee: Bayer AG
•
Filing: 1962-12-18
•
Granted: 1965-08-10
•
Expires: 1982-12-18
Abstract
No abstract record available.
Inventors
- 👤 Ruppert Heinrich
- 👤 Schnell Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:57
CPC Classifications
C; C07; C07C; C07C211/00; C07C211/43; C07C211/44; C07C211/49; C07C211/50; C07C209/00; C07C209/60; C08; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AROMATIC AMINO COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
6 words
AROMATIC AMINO COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
CA620573A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-09 | 1969-02-08 | 1969-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-09 | 1973-02-08 | 1973-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-09 | 1977-02-08 | 1977-08-10 | $7700.00 | Window Closed / Lapsed |