Patent US2974173A successfully refreshed from Google Patents.
US2974173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acetaldehyde manufacture
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1959-02-24
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Granted: 1961-03-07
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Expires: 1979-02-24
Abstract
No abstract record available.
Inventors
- 👤 Robert B Long
- 👤 Jr Carl E Heath
- 👤 Kevorkian Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:08
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PROCESS FOR PRODUCING ACETALDEHYDE WHICH COMPRISES REACTING ETHANE IN A VAPOR-PHASE NONCATALYTIC SYSTEM WITH FROM 0.15 TO 2.0 MOLES OF OXYGEN PER MOLE OF ETHANE AND FURTHER IN THE PRESENCE OF 0.05 TO 8 VOLUME PERCENT OZONE BASED ON OXYGEN AT A TEMPERATURE BETWEEN ABOUT 200-700*F.
Claim 2
Dependent Claim
47 words
A PROCESS FOR PRODUCING ACETALDEHYDE WHICH COMPRISES REACTING ETHANE IN A VAPOR-PHASE NONCATALYTIC SYSTEM WITH FROM 0.15 TO 2.0 MOLES OF OXYGEN PER MOLE OF ETHANE AND FURTHER IN THE PRESENCE OF 0.05 TO 8 VOLUME PERCENT OZONE BASED ON OXYGEN AT A TEMPERATURE BETWEEN ABOUT 200-700*F.
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) | 1964-03-06 | 1964-09-05 | 1965-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-06 | 1968-09-05 | 1969-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-06 | 1972-09-05 | 1973-03-07 | $7700.00 | Window Closed / Lapsed |