Patent US2168845A successfully refreshed from Google Patents.
Patent US2572886A successfully refreshed from Google Patents.
US2572886A
Expired / Lapsed
US
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Certain polyol ethers
Assignee: Baker Petrolite LLC
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Filing: 1949-09-28
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Granted: 1951-10-30
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Expires: 1969-09-28
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Arthur F Wirtel
- 👤 Owen H Pettingill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:49
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
AT LEAST ONE COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF APLAHA-TERPINEOL; SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM ALPHA-TERPINEOL, GLYCIDE, ETHYLENE OXIDE AND PROPLENE OXIDE BY REACTION THEREOF IN SUCH WEIGHT PROPORTIONS SO THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE STATED IN TERMS OF INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE TRUNCATED TRAPEZOIDAL PYRAMID IDENTIFIED AS E, F, G, HI, J, K, L IN FIGURE 4 OF THE DRAWINGS, WITH THE PROVISO THAT THE PERCENTAGE OF GLYCIDE IS WITHIN THE LIMITS OF 2% TO 25% BY WEIGHT AND THAT THE REMAINING THREE LIMITS REACTANTS, RECALCULATED TO A 100% BASIS, LIE APPROXIMATELY WITHIN THE TRAPEZOIDAL AREA DEFINED APPROXIMATELY IN FIGURE 3 OF THE DRAWINGS BY POINTS 8, 9, 10 AND 11.
Claim 2
Dependent Claim
122 words
AT LEAST ONE COGENERIC MIXTURE OF A HOMOLOGOUS SERIES OF GLYCOL ETHERS OF APLAHA-TERPINEOL; SAID COGENERIC MIXTURE BEING DERIVED EXCLUSIVELY FROM ALPHA-TERPINEOL, GLYCIDE, ETHYLENE OXIDE AND PROPLENE OXIDE BY REACTION THEREOF IN SUCH WEIGHT PROPORTIONS SO THE AVERAGE COMPOSITION OF SAID COGENERIC MIXTURE STATED IN TERMS OF INITIAL REACTANTS LIES APPROXIMATELY WITHIN THE TRUNCATED TRAPEZOIDAL PYRAMID IDENTIFIED AS E, F, G, HI, J, K, L IN FIGURE 4 OF THE DRAWINGS, WITH THE PROVISO THAT THE PERCENTAGE OF GLYCIDE IS WITHIN THE LIMITS OF 2% TO 25% BY WEIGHT AND THAT THE REMAINING THREE LIMITS REACTANTS, RECALCULATED TO A 100% BASIS, LIE APPROXIMATELY WITHIN THE TRAPEZOIDAL AREA DEFINED APPROXIMATELY IN FIGURE 3 OF THE DRAWINGS BY POINTS 8, 9, 10 AND 11.
References Cited (Backward Citations)
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Cited
US1976677A
Cited
US2213477A
Cited
US2130525A
Cited
US2425755A
Cited
US2425845A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |