Patent US3061646A successfully refreshed from Google Patents.
US3061646A
Expired / Lapsed
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Process for partial oxidation of ethane to produce formaldehyde
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-12-30
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Granted: 1962-10-30
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Expires: 1979-12-30
Abstract
No abstract record available.
Inventors
- 👤 Bartok William
- 👤 Carl E Heath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:21
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
A PROCESS FOR PRODUCING FORMALDEHYDE WHICH COMPRISES CONTACTING ETHANE AND MOLECULAR OXYGEN IN AN O2 TO ETHAN MOLE RATIO OF ABOUT 0.2 TO 1 WITH 0.5 TO 2.5 WT. PERCENT OZONE BASED ON ETHANE AT A TEMPERATURE IN THE RANGE OF 400* TO 800* F, IN A REACTION ZONE HAVING AN ALUMINUM SURFACE TO VOLUME RATIO IN THE RANGE OF ABOUT 6 TO 15 CM-1.
Claim 2
Dependent Claim
65 words
A PROCESS FOR PRODUCING FORMALDEHYDE WHICH COMPRISES CONTACTING ETHANE AND MOLECULAR OXYGEN IN AN O2 TO ETHAN MOLE RATIO OF ABOUT 0.2 TO 1 WITH 0.5 TO 2.5 WT. PERCENT OZONE BASED ON ETHANE AT A TEMPERATURE IN THE RANGE OF 400* TO 800* F, IN A REACTION ZONE HAVING AN ALUMINUM SURFACE TO VOLUME RATIO IN THE RANGE OF ABOUT 6 TO 15 CM-1.
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) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |