US3404177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Producing and recovering vinyl acetate from a gaseous mixture by fractional distillation
Assignee: Millennium Petrochemicals Inc
•
Filing: 1965-09-02
•
Granted: 1968-10-01
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Expires: 1985-09-02
Abstract
No abstract record available.
Inventors
- 👤 Theodore B Baba
- 👤 Irving L Mador
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:35
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/02; B; B01; B01J; B01J12/00; C07C67/00; C07C67/04; C07C67/05; C07C67/055; C07C69/007; C07C69/01; Y; Y10; Y10S; Y10S203/00; Y10S203/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2176500A
Cited
GB586489A
Cited
US2431554A
Cited
US2504045A
Cited
US3052610A
Cited
US3190912A
Cited
US3266221A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |