US3325543A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-aryl-perchloro-2-aza-2-alkenes and preparation thereof
Assignee: Bayer AG
•
Filing: 1964-03-17
•
Granted: 1967-06-13
•
Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Degener Eberhart
- 👤 Schmelzer Hans-Georg
- 👤 Holtschmidt Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:36
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/52; A01N47/00; A01N47/40; A01N47/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
4 words
1-ARYL-PERCHLORO-2-AZA-PROPENES OF THE FORMULA
Claim 2
Dependent Claim
4 words
1-ARYL-PERCHLORO-2-AZA-PROPENES OF THE FORMULA
Claim 3
Dependent Claim
16 words
PROCESS FOR THE PREPARATION OF CHLORINATED 2-AZAALKANES WHICH REACTING A CARBOXYLIC ACID IMIDOCHLORIDE OF THE FORMULA
Claim 4
Dependent Claim
16 words
PROCESS FOR THE PREPARATION OF CHLORINATED 2-AZAALKANES WHICH REACTING A CARBOXYLIC ACID IMIDOCHLORIDE OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-12 | 1970-12-12 | 1971-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-12 | 1974-12-12 | 1975-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-12 | 1978-12-12 | 1979-06-13 | $7700.00 | Window Closed / Lapsed |