US2826618A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low viscosity synthetic drying oils
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1953-01-02
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Granted: 1958-03-11
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Expires: 1973-01-02
Abstract
No abstract record available.
Inventors
- 👤 Anthony H Gleason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:03
CPC Classifications
C; C08; C08F; C08F236/00; C08F236/02; C08F236/04; C08F236/10; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/945
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A NEW COMPOSITION OF MATTER COMPRISING A COPOLYMER OF ABOUT 75 TO 85 PARTS OF COMBINED BUTADIENE-1,3 AND ABOUT 25 TO 15 PARTS OF A COMBINED STYRENE, CHOSEN FROM THE GROUP CONSISTING OF STYRENE, PARA METHYL STYRENE, META METHYL STYRENE, DIMETHYL STYRENE, PARA ETHYL STYRENE, META ETHYL STYRENE, AND DIETHYL STYRENE, SAID COPOLYMER HAVING A VISCOSITY OF 0.15 TO 2.2 POISES AT 50% NON-VOLATILE MATTER AS MEASURED IS STRAIGHT-RUN MINERAL SPIRITS BOILING 150* TO 200* C.
Claim 2
Dependent Claim
76 words
A NEW COMPOSITION OF MATTER COMPRISING A COPOLYMER OF ABOUT 75 TO 85 PARTS OF COMBINED BUTADIENE-1,3 AND ABOUT 25 TO 15 PARTS OF A COMBINED STYRENE, CHOSEN FROM THE GROUP CONSISTING OF STYRENE, PARA METHYL STYRENE, META METHYL STYRENE, DIMETHYL STYRENE, PARA ETHYL STYRENE, META ETHYL STYRENE, AND DIETHYL STYRENE, SAID COPOLYMER HAVING A VISCOSITY OF 0.15 TO 2.2 POISES AT 50% NON-VOLATILE MATTER AS MEASURED IS STRAIGHT-RUN MINERAL SPIRITS BOILING 150* TO 200* C.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |