US2931838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2-methyl-2-hydroxy-4-(2, 2, 2-trichloro-1-hydroxyethoxy)-pentane and its production
Assignee: Det Danske Medicinal & Kemikal
•
Filing: 1957-11-26
•
Granted: 1960-04-05
•
Expires: 1977-11-26
Abstract
No abstract record available.
Inventors
- 👤 Christensen Jorgen Erik Tind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:32
CPC Classifications
C; C07; C07C; C07C31/00; C07C31/34; C07C43/00; C07C43/02; C07C43/03; C07C43/04; C07C43/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
AS A COMPOUND, 2-METHYL-2-HYDROXY-4-(2,2,2-TRICHLORO-1-HYDROXYETHOXY)-PENTANE.
Claim 2
Dependent Claim
4 words
AS A COMPOUND, 2-METHYL-2-HYDROXY-4-(2,2,2-TRICHLORO-1-HYDROXYETHOXY)-PENTANE.
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) | 1963-04-05 | 1963-10-05 | 1964-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-05 | 1967-10-05 | 1968-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-05 | 1971-10-05 | 1972-04-05 | $7700.00 | Window Closed / Lapsed |