US1969356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkoxy-3-carboxy-diphenyl
Assignee: ER Squibb and Sons LLC
•
Filing: 1932-12-23
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Granted: 1934-08-07
•
Expires: 1952-12-23
Abstract
No abstract record available.
Inventors
- 👤 Walter G Christiansen
- 👤 Adelbert W Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:40
CPC Classifications
C; C07; C07C; C07C65/00; C07C65/21; C07C65/24
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) | 1937-08-06 | 1938-02-05 | 1938-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-08-06 | 1942-02-05 | 1942-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-08-06 | 1946-02-05 | 1946-08-07 | $7700.00 | Window Closed / Lapsed |