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US3450776A
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Process for the hydrogenation of water-miscible acetylene compounds into olefin compounds
Assignee: SnamProgetti SpA
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Filing: 1968-02-16
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Granted: 1969-06-17
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Expires: 1988-02-16
Abstract
No abstract record available.
Inventors
- 👤 Alessandro Di Cio
- 👤 Marcello Massi Mauri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:50
CPC Classifications
B; B01; B01J; B01J23/00; B01J23/38; B01J23/40; B01J23/44; C; C07; C07C; C07C33/00; C07C33/04; C07C33/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA658801A
Cited
US2207070A
Cited
US2267749A
Cited
US2335795A
Cited
US2516826A
Cited
FR1190949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |