Patent US2025587A successfully refreshed from Google Patents.
US2025587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Akylibes of x-hydroxy-diphenyl
Assignee: —
•
Filing: —
•
Granted: 1935-12-24
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Expires: 1952-12-24
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:57
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/56; C07D209/80; C07C; C07C233/00; C07C233/01; C07C233/12; C07C235/00; C07C235/42; C07C235/44; C07C235/58; C07C2601/00; C07C2601/12; C07C2601/16; C07C2602/00; C07C2602/02; C07C2602/04; C07C2602/10
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) | 1938-12-23 | 1939-06-24 | 1939-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-12-23 | 1943-06-24 | 1943-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-12-23 | 1947-06-24 | 1947-12-24 | $7700.00 | Window Closed / Lapsed |