US3029257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized saturated cyclic ether compositions
Assignee: EIDP Inc
•
Filing: 1959-11-20
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Granted: 1962-04-10
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Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Hugh C Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:22
CPC Classifications
C; C07; C07D; C07D309/00; C07D309/02; C07D309/04; C07D307/00; C07D307/02; C07D307/04; C07D307/06; C07D307/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A STABILIZED COMPOSITION CONSISTING ESSENTIALLY OF A SATURATED CYCLIC ETHER SELECTED FROM THE GROUP CONSISTING OF TETRAHYDROFURAN, METHYL TETRAHYDROFURAN, AND TETRAHYDROPYRAN AND FROM 0.01 TO 1% BY WEIGHT 4,4''-THIOBIS(6-TERTIARY-BUTYL-M-CRESOL)
Claim 2
Dependent Claim
29 words
A STABILIZED COMPOSITION CONSISTING ESSENTIALLY OF A SATURATED CYCLIC ETHER SELECTED FROM THE GROUP CONSISTING OF TETRAHYDROFURAN, METHYL TETRAHYDROFURAN, AND TETRAHYDROPYRAN AND FROM 0.01 TO 1% BY WEIGHT 4,4''-THIOBIS(6-TERTIARY-BUTYL-M-CRESOL)
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) | 1965-04-09 | 1965-10-09 | 1966-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-09 | 1969-10-09 | 1970-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-09 | 1973-10-09 | 1974-04-10 | $7700.00 | Window Closed / Lapsed |