US3356725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pentahalocyclopentadienylamines and preparation thereof
Assignee: Purdue Research Foundation
•
Filing: 1963-12-16
•
Granted: 1967-12-05
•
Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Earl T Mcbee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:34
CPC Classifications
C; C07; C07C; C07C23/00; C07C23/02; C07C23/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
PENTAHALOCYCLOPENTADIENEAMINE OF THE FORMULA C5X5NHR WHEREIN X IS CHLORO OR BROMO AND R IS HYDROGEN OR AN ALKYL, HYDROXYALKYL, CYCLOALKYL, ARYL, ALKARYL OR ARALKYL GROUP HAVING A MOLECULAR WEIGHT BELOW 300, IN WHCIH ARYL IS CARBOCYCLIC AND CONTAINS 6 TO 20 CARBON ATOMS, ALKYL CONTAINS FROM 1 TO 20 CARBON ATOMS AND CYCLOALKYL CONTAINS FROM 3 TO 8 CARBON ATOMS.
Claim 2
Dependent Claim
60 words
PENTAHALOCYCLOPENTADIENEAMINE OF THE FORMULA C5X5NHR WHEREIN X IS CHLORO OR BROMO AND R IS HYDROGEN OR AN ALKYL, HYDROXYALKYL, CYCLOALKYL, ARYL, ALKARYL OR ARALKYL GROUP HAVING A MOLECULAR WEIGHT BELOW 300, IN WHCIH ARYL IS CARBOCYCLIC AND CONTAINS 6 TO 20 CARBON ATOMS, ALKYL CONTAINS FROM 1 TO 20 CARBON ATOMS AND CYCLOALKYL CONTAINS FROM 3 TO 8 CARBON ATOMS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |