US2497060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3,5-dihalogen-2-cyanodiphenyls
Assignee: GAF Chemicals Corp
•
Filing: 1948-12-31
•
Granted: 1950-02-14
•
Expires: 1968-12-31
Abstract
No abstract record available.
Inventors
- 👤 Saul R Buc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:03
CPC Classifications
C; C07; C07C; C07C255/00; C07C255/49; C07C255/50; C07C255/51
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A DIPHENYL DIHALOGEN MONONITRILE OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
8 words
A DIPHENYL DIHALOGEN MONONITRILE OF THE GENERAL 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) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |