US3047554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization catalyst of cobaltous chloride and aluminum triisobutyl for vinyl acetate
Assignee: EIDP Inc
•
Filing: 1957-04-23
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Granted: 1962-07-31
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Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 Frank P Gay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:45
CPC Classifications
C; C08; C08F; C08F10/00; C08F18/00; C08F18/02; C08F18/04; C08F18/08; C08F2/00; C08F2/36; C08F20/00; C08F20/02; C08F20/42; C08F20/44; C08F4/00; C08F4/06; C08F4/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2391920A
Cited
US2482056A
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US2471959A
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BE534792A
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US2840551A
Cited
US2832759A
Cited
US2827447A
Cited
US2881156A
Cited
US2932633A
Cited
US2910461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-30 | 1966-01-29 | 1966-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-30 | 1970-01-29 | 1970-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-30 | 1974-01-29 | 1974-07-31 | $7700.00 | Window Closed / Lapsed |