Patent US2495286A successfully refreshed from Google Patents.
US2495286A
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Interpolymers of carbon monoxide and method for preparing the same
Assignee: EIDP Inc
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Filing: 1949-06-08
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Granted: 1950-01-24
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Expires: 1969-06-08
Abstract
No abstract record available.
Inventors
- 👤 Merlin M Brubaker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:01
CPC Classifications
C; C08; C08G; C08G67/00; C08G67/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31551; Y10T428/31645; Y10T428/31678; Y10T428/31692; Y10T428/31696; Y10T428/31699
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A PROCESS FOR THE PREPARATION OF POLYMERIZATION PRODUCTS WHICH COMPRISES HEATING TOGETHER CARBON MONOXIDE WITH A POLYMERIZABLE ORGANIC COMPOUND CONTAINING ETHYLENIC UNSATURATION IN THE PRESENCE OF A PER-OXY COMPOUND CATALYST, AND IN THE ABSENCE OF A FRIEDEL-CRAFTS CATALYST, SAID COMPOUND CONTAINING ETHYLENIC UNSATURATION BEING ONE WHICH UNDERGOES ADDITION POLYMERIZATION WHEN SUBJECTED TO THE POLYMERIZING ACTION OF A PER-OXY COMPOUND.
Claim 2
Dependent Claim
59 words
A PROCESS FOR THE PREPARATION OF POLYMERIZATION PRODUCTS WHICH COMPRISES HEATING TOGETHER CARBON MONOXIDE WITH A POLYMERIZABLE ORGANIC COMPOUND CONTAINING ETHYLENIC UNSATURATION IN THE PRESENCE OF A PER-OXY COMPOUND CATALYST, AND IN THE ABSENCE OF A FRIEDEL-CRAFTS CATALYST, SAID COMPOUND CONTAINING ETHYLENIC UNSATURATION BEING ONE WHICH UNDERGOES ADDITION POLYMERIZATION WHEN SUBJECTED TO THE POLYMERIZING ACTION OF A PER-OXY COMPOUND.
References Cited (Backward Citations)
US2352328A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |