Patent US3331824A successfully refreshed from Google Patents.
US3331824A
Expired / Lapsed
US
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Polymerization catalyst residue removal by hydrogenation
Assignee: Eastman Kodak Co
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Filing: 1964-01-07
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Granted: 1967-07-18
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Paul D Folzenlogen
- 👤 Marvin B Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:03
CPC Classifications
C; C08; C08F; C08F6/00; C08F6/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
IN THE POLYMERIZATION OF POLYMER OR COPOLYMER COMPOSITIONS DERIVED FROM MONOMER REACTANTS CONTAINING ONLY ONE
Claim 2
Dependent Claim
15 words
IN THE POLYMERIZATION OF POLYMER OR COPOLYMER COMPOSITIONS DERIVED FROM MONOMER REACTANTS CONTAINING ONLY ONE
References Cited (Backward Citations)
US3023201A
Cited
US2997453A
Cited
US3053821A
Cited
US3138579A
Cited
US3149097A
Cited
US3220996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-17 | 1971-01-16 | 1971-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-17 | 1975-01-16 | 1975-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-17 | 1979-01-16 | 1979-07-18 | $7700.00 | Window Closed / Lapsed |