US2849474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylaryl thio-urethans
Assignee: Universal Oil Products Co
•
Filing: 1954-09-01
•
Granted: 1958-08-26
•
Expires: 1974-09-01
Abstract
No abstract record available.
Inventors
- 👤 Herman S Bloch
- 👤 Donald R Strehlau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:18
CPC Classifications
C; C07; C07C; C07C333/00; C07C333/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
9 words
AN ALKYLARYL HYDROCARBON N-SUBSTITUTED MONOTHIO-URETHAN HAVING THE EMPIRICAL FORMULA:
Claim 2
Dependent Claim
9 words
AN ALKYLARYL HYDROCARBON N-SUBSTITUTED MONOTHIO-URETHAN HAVING THE EMPIRICAL FORMULA:
Claim 3
Dependent Claim
107 words
A PROCESS FOR THE PRODUCTION OF AN ALKYLARYL MONOTHIO-URETHAN WHICH COMPRISES REACTING COMPOUND (1) WITH COMPOUND (2), SAID COMPOUND (1) CONSISTING OF: A MONO-(ALKYLARYL)-SUBSTITUTED ISOTHIOCYANATE IN WHICH SAID ALKYLARYL RADICAL IS SUBSTITUTED ON THE ISOTHIOCYANATE NITROGEN ATOM OF SAID ISOTHIOCYANATE AND IS SELECTED FROM THE GROUP CONSISTING OF MONO- AND BICYCLIC ARYL HYDROCARBON RADICALS CONTAINING AN ALKYL SUBSTITUENT ON THE ARYL NUCLEUS HAVING FROM 3 TO ABOUT 20 CARBON ATOMS, AND SAID COMPOUND (2) IS A POLYOXY ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLY-(OXYALKYLENE) GYLCOL, A POLY-(OXYALKYLENE) GLYCOL ETHER, A POLY(OXYALKYLENE) GLYCOL ESTER, A POLYHYDROXY-SUBSTITUTED PARAFFINIC HYDROCARBON, A POLYHYDROXY-SUBSTITUTED CYCLOPARAFFINIC HYDROCARBON, AND A CARBOHYDRATE.
Claim 4
Dependent Claim
107 words
A PROCESS FOR THE PRODUCTION OF AN ALKYLARYL MONOTHIO-URETHAN WHICH COMPRISES REACTING COMPOUND (1) WITH COMPOUND (2), SAID COMPOUND (1) CONSISTING OF: A MONO-(ALKYLARYL)-SUBSTITUTED ISOTHIOCYANATE IN WHICH SAID ALKYLARYL RADICAL IS SUBSTITUTED ON THE ISOTHIOCYANATE NITROGEN ATOM OF SAID ISOTHIOCYANATE AND IS SELECTED FROM THE GROUP CONSISTING OF MONO- AND BICYCLIC ARYL HYDROCARBON RADICALS CONTAINING AN ALKYL SUBSTITUENT ON THE ARYL NUCLEUS HAVING FROM 3 TO ABOUT 20 CARBON ATOMS, AND SAID COMPOUND (2) IS A POLYOXY ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF A POLY-(OXYALKYLENE) GYLCOL, A POLY-(OXYALKYLENE) GLYCOL ETHER, A POLY(OXYALKYLENE) GLYCOL ESTER, A POLYHYDROXY-SUBSTITUTED PARAFFINIC HYDROCARBON, A POLYHYDROXY-SUBSTITUTED CYCLOPARAFFINIC HYDROCARBON, AND A CARBOHYDRATE.
References Cited (Backward Citations)
US1970578A
Cited
US2374136A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |