Patent US2678313A successfully refreshed from Google Patents.
US2678313A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable molecular compounds of
Assignee: —
•
Filing: —
•
Granted: 1954-05-11
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Expires: 1971-05-11
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:24
CPC Classifications
C; C07; C07D; C07D239/00; C07D239/02; C07D239/24; C07D239/28; C07D239/46; C07D239/60; C07D239/62; C07D239/64; C07D251/00; C07D251/02; C07D251/12; C07D251/26; C07D251/40; C07D251/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A STABLE HOMOGENOUS COMPOUND CONTAINING IN EQUIMOLECULAR PROPORTIONS 5-PHENYL-5-ETHYLBARBITURIC ACID AND A BASE OF THE GENERAL FORMULA
Claim 2
Dependent Claim
17 words
A STABLE HOMOGENOUS COMPOUND CONTAINING IN EQUIMOLECULAR PROPORTIONS 5-PHENYL-5-ETHYLBARBITURIC ACID AND A BASE OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2434635A
Cited
US2515898A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-10 | 1957-11-09 | 1958-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-10 | 1961-11-09 | 1962-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-10 | 1965-11-09 | 1966-05-11 | $7700.00 | Window Closed / Lapsed |