Patent US3341604A successfully refreshed from Google Patents.
US3341604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color stable ketone solvent composition
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1963-01-28
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Granted: 1967-09-12
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Expires: 1983-01-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph R Quelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 15:10
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/78; C07C45/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A DIALKYL KETONE OF3 TO 8 CARBON ATOMS STABILIZED WITH 0.0001 TO 0.5 WT. PERCENT OF ASCORBIC ACID.
Claim 2
Dependent Claim
18 words
A DIALKYL KETONE OF3 TO 8 CARBON ATOMS STABILIZED WITH 0.0001 TO 0.5 WT. PERCENT OF ASCORBIC ACID.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |