Patent US3290249A successfully refreshed from Google Patents.
US3290249A
Expired / Lapsed
US
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Polyphenyl ether compositions useful as functional fluids
Assignee: Monsanto Research Corp
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Filing: 1961-12-26
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Granted: 1966-12-06
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Expires: 1981-12-26
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:31
CPC Classifications
C; C10; C10M; C10M3/00; C10M2207/00; C10M2207/04; C10M2209/00; C10M2209/02; C10M2209/10; Y; Y10; Y10S; Y10S376/00; Y10S376/90; Y10S376/904; Y10S376/905
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A FUNCTIONAL FLUID COMPOSITION CONSISTING ESSENTIALLY OF A POLYPHENYL ETHER OF THE FORMULA (PHENYL-O-(PHENYLENE-O)N-)BENZENE WHEREIN N IS A WHOLE NUMBER OF 2 TO 5 AND FROM 0.01% TO 1.0% BY WEIGHT OF A COPPER COMPOUND SELECTED FROM THE CLASS CONSISTING OF CUPRIC OXIDE AND CUPROUS OXIDE.
Claim 2
Dependent Claim
46 words
A FUNCTIONAL FLUID COMPOSITION CONSISTING ESSENTIALLY OF A POLYPHENYL ETHER OF THE FORMULA (PHENYL-O-(PHENYLENE-O)N-)BENZENE WHEREIN N IS A WHOLE NUMBER OF 2 TO 5 AND FROM 0.01% TO 1.0% BY WEIGHT OF A COPPER COMPOUND SELECTED FROM THE CLASS CONSISTING OF CUPRIC OXIDE AND CUPROUS OXIDE.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |