Patent US4258124A successfully refreshed from Google Patents.
Patent US1625531A successfully refreshed from Google Patents.
US1625531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Of basel
Assignee: —
•
Filing: —
•
Granted: 1927-04-19
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Expires: 1944-04-19
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:19
CPC Classifications
C; C07; C07D; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/48; C07D251/50; C07D403/00; C07D403/02; C07D403/12
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) | 1930-04-18 | 1930-10-18 | 1931-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-04-18 | 1934-10-18 | 1935-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-04-18 | 1938-10-18 | 1939-04-19 | $7700.00 | Window Closed / Lapsed |