US2578611A
Expired / Lapsed
US
⏱️ 0.0 years remaining
2, 4-oxazolidinediones
Assignee: Mallinckrodt Chemical Works
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Filing: 1947-12-20
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Granted: 1951-12-11
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Expires: 1967-12-20
Abstract
No abstract record available.
Inventors
- 👤 Roger W Stoughton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:12
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/02; C07D263/30; C07D263/34; C07D263/44
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF 5 -DIETHYLAMINOMETHYL- 5 -METHYL- 2,4OXAZOLIDINEDIONE, 5-DIETHYLAMINOMETHYL - 3,5DIMETHYL- 2,4 -OXAZOLIDINEDIONE, 5- DI- N -BUTYLAMINOMETHYL-5-METHYL- 2,4 -OXAZOLIDINEDIONE, 5DI-N-BUTYLAMINOMETHYL-3,5 -DIMETHYL- 2,4 -OXAZOLIDINEDIONE, 5-(3 - DIETHYLAMINO) PROPYL - 5METHYL - 2,4 -OXAZOLIDINEDIONE, 5-(3-DIETHYLAMINO) PROPYL-3,5-DIMETHYL-2,4-OXAZOLIDINEDIONE, 5 -METHYLK 5-(4- MORPHOLINY) -METHYL- 2,4- OXAZOLIDINEDIONE, 3,5-DIMETHYL-5-(MORPHOLINYL)METHYL -2,4 - OXAZOLIDINEDIONE, 5-METHYL-5-(1PIPERIDYL)-METHYL-2,4-OXAZOLIDINEDIONE, 3,5 - DIMETHYL-5-(1-PIPERIDYL) -METHYL- 2,4 -OXAZOLIDINEDIONE, 3-(B-DITHYLAMINOETHYL) -5-PHENYL-2,4OXAZOLIDINEDIONE, 3-B-DIMETHYLAMINOETHHYL-5,5-DIPHENYL-2,4-OXAZOLIDINEDIONE, 3 -B- DIETHYLAMINOPROPYL-5,5-DIPHENYL-2,4-OXAZOLIDINEDIONE, 3-Y-DIN-BUTYLAMINOPROPYL- 5,5 -DIPHENYL- 2,4 -OXAZOLIDINEDIONE, 3-B -DI -N- BUTYLAMINOETHYL- 5,5 -DIPHENYL-2,4-OXAZOLIDINEDIONE, 3-B-(1-PIPERDYL)ETHYL5,5-DIPHENYL2,4-OXAZOLIDINEDIONE, 3-B-(4MORPHOLINYL)ETHYL-5,5-DIPHENYL-2,4 -OXAZOLIDINEDIONE, AND ACID ADDITION SALTS THEREOF.
References Cited (Backward Citations)
US952006A
Cited
US2349795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |