Patent US2125384A successfully refreshed from Google Patents.
US2125384A
Expired / Lapsed
US
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Preparation of ethynyl carbinols
Assignee: EIDP Inc
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Filing: 1936-07-20
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Granted: 1938-08-02
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Expires: 1956-07-20
Abstract
No abstract record available.
Inventors
- 👤 Macallum Alexander Douglas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:01
CPC Classifications
C; C07; C07C; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C12; C12C; C12C11/00; C12C11/02; C07C2602/00; C07C2602/36; C07C2602/42
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) | 1941-08-01 | 1942-01-31 | 1942-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-08-01 | 1946-01-31 | 1946-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-08-01 | 1950-01-31 | 1950-08-02 | $7700.00 | Window Closed / Lapsed |