US2425201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing ethynyl carbinols
Assignee: Ortho Pharmaceutical Corp
•
Filing: 1945-09-11
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Granted: 1947-08-05
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Expires: 1965-09-11
Abstract
No abstract record available.
Inventors
- 👤 Oroshnik William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
C; C07; C07C; C07C403/00; C07C403/06; C07C403/08; C07C29/00; C07C29/36; C07C29/38; C07C29/42; C07C2601/00; C07C2601/12; C07C2601/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-04 | 1951-02-03 | 1951-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-04 | 1955-02-03 | 1955-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-04 | 1959-02-03 | 1959-08-05 | $7700.00 | Window Closed / Lapsed |