US2927927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain x-acyl
Assignee: —
•
Filing: —
•
Granted: 1960-03-08
•
Expires: 1977-03-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:03
CPC Classifications
C; C07; C07D; C07D231/00; C07D231/02; C07D231/10; C07D231/14; C07D231/28; C07D231/30; C07D231/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
1-(P-PHYDROXYPHENYL)-2-PHENYL-4-BUTYRYL-3,5-DIOXOPYRAZOLIDINE. 2. 1-(P-HYDROXYPHENYL)-2-PHENYL-4-PHENYLACETYL-3,5DIOXO-PYRAZOLIDINE. 3. 1-(P-HYDROXYPHENYL)-2-PHENYL-4-BENZYL-3.5-DIOXOPYRAZOLIDINE.
Claim 2
Dependent Claim
5 words
1-(P-PHYDROXYPHENYL)-2-PHENYL-4-BUTYRYL-3,5-DIOXOPYRAZOLIDINE. 2. 1-(P-HYDROXYPHENYL)-2-PHENYL-4-PHENYLACETYL-3,5DIOXO-PYRAZOLIDINE. 3. 1-(P-HYDROXYPHENYL)-2-PHENYL-4-BENZYL-3.5-DIOXOPYRAZOLIDINE.
References Cited (Backward Citations)
US2562830A
Cited
US2700671A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |