Patent US3592840A successfully refreshed from Google Patents.
US3592840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of vinyl acetate
Assignee: BP Chemicals Ltd
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Filing: 1967-05-17
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Granted: 1971-07-13
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Expires: 1987-05-17
Abstract
Abstract A PROCESS FOR THE PRODUCTION OF VINYL ACETATES BY THE VAPOUR PHASE CATALYTIC REACTION OF ETHYLENE, OXYGEN AND ACETIC ACID EMPLOYING A PLATINUM GROUP METAL CATALYST SUPPORTED ON TITANIA OR MIXTURES OF TITANIA AND AN ALKALI METAL SILICATE.
Inventors
- 👤 Peter John Durston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 07:07
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/70; B01J23/89; B01J23/38; B01J23/40; B01J23/54; B01J23/56; B01J23/58; B01J23/60; C; C07; C07C; C07C67/00; C07C67/04; C07C67/05; C07C67/055; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/584
Claims Analysis
Total Claims: 0
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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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |