US3562335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
4,4'-bis(chloroalkoxy)biphenyls
Assignee: Pfizer Inc
•
Filing: 1969-03-19
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Granted: 1971-02-09
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Expires: 1989-03-19
Abstract
Abstract ANTIVIRAL AGENTS OF THE FORMULA: 4,4''-BIS(CL-Y-O-)BIPHENYL WHEREIN X AND Z ARE EACH ALKYLENE OF 2 TO 7 CARBONS, AND THE PREPARATION THEREOF.
Inventors
- 👤 David R Gildersleve
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:41
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/075; A61K31/085; C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/205
Claims Analysis
Total Claims: 0
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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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |