US2550745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vinyl t-hydroxy ketones
Assignee: Publicker Ind Inc
•
Filing: 1947-04-10
•
Granted: 1951-05-01
•
Expires: 1967-04-10
Abstract
No abstract record available.
Inventors
- 👤 Richard S Wilder
- 👤 Daniel F Herman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:24
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/20; C07C49/24; C07C45/00; C07C45/61; C07C45/67; C07C45/673
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
VINYL T-HYDROXY KETONES WHEREIN THE KETO AND T-HYDROXYL GROUPS ARE ONE AND TWO CARBON ATOMS REMOVED, RESPECTIVELY, FROM THE VINYL GROUP, SAID KETONES HAVING THE GENERAL FORMULA:
Claim 2
Dependent Claim
27 words
VINYL T-HYDROXY KETONES WHEREIN THE KETO AND T-HYDROXYL GROUPS ARE ONE AND TWO CARBON ATOMS REMOVED, RESPECTIVELY, FROM THE VINYL GROUP, SAID KETONES HAVING THE GENERAL FORMULA:
References Cited (Backward Citations)
US2101314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-30 | 1954-10-30 | 1955-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-30 | 1958-10-30 | 1959-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-30 | 1962-10-30 | 1963-05-01 | $7700.00 | Window Closed / Lapsed |