Patent US2558068A successfully refreshed from Google Patents.
US2558068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing j
Assignee: —
•
Filing: —
•
Granted: 1951-06-26
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Expires: 1968-06-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:04
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/38; C07D277/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
THE PROCESS OF PRODUCING SUBSTITUTED 2IMINOTHIAZOLIDINES, CHOSEN FROM THE GROUP CONSISTING OF THE RACEMIC, THE LEVOROTATORY AND THE DEXTROROTATORY 3,4-DIMETHYL-5-PHENYL-2-IMINOTHIAZOLIDINE WHICH PROCESS COMPRISES CAUSING A SALT OF THIOCYANIC ACID TO ACT UPON A COMPOUND CHOSEN FROM THE GROUP CONSISTING OF THE RECEMIC, THE LEVOROTATORY AND THE DEXTROROTATORY 1-PHENYL-1-HALOGEN-2-METHYLAMINO-PROPANE HYDROHALIDE, WHILST THE REACTIVE MATERIALS ARE SUSPENDED IN A DILUENT VEHICLE IN WHICH THEY ARE AT LEAST PARTLY SOLUBLE, SAID VEHICLE BEING CHOSEN FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, DI-BUTYL ETHER, A CHLORINE-SUBSTITUTION PRODUCT OF A LOWER ALIPHATIC HYDROCARBON, BENZENE, PYRIDINE AND WATER.
Claim 2
Dependent Claim
92 words
THE PROCESS OF PRODUCING SUBSTITUTED 2IMINOTHIAZOLIDINES, CHOSEN FROM THE GROUP CONSISTING OF THE RACEMIC, THE LEVOROTATORY AND THE DEXTROROTATORY 3,4-DIMETHYL-5-PHENYL-2-IMINOTHIAZOLIDINE WHICH PROCESS COMPRISES CAUSING A SALT OF THIOCYANIC ACID TO ACT UPON A COMPOUND CHOSEN FROM THE GROUP CONSISTING OF THE RECEMIC, THE LEVOROTATORY AND THE DEXTROROTATORY 1-PHENYL-1-HALOGEN-2-METHYLAMINO-PROPANE HYDROHALIDE, WHILST THE REACTIVE MATERIALS ARE SUSPENDED IN A DILUENT VEHICLE IN WHICH THEY ARE AT LEAST PARTLY SOLUBLE, SAID VEHICLE BEING CHOSEN FROM THE GROUP CONSISTING OF METHANOL, ETHANOL, DI-BUTYL ETHER, A CHLORINE-SUBSTITUTION PRODUCT OF A LOWER ALIPHATIC HYDROCARBON, BENZENE, PYRIDINE AND WATER.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |