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Patent US2634254A successfully refreshed from Google Patents.
US2634254A
Expired / Lapsed
US
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Polymerization of sulfur dioxide with carbon monoxide and threecomponent solid polymers thereof with a monoolefinic hydrocarbon
Assignee: EIDP Inc
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Filing: 1950-11-06
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Granted: 1953-04-07
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Expires: 1970-11-06
Abstract
No abstract record available.
Inventors
- 👤 Robert D Lipscomb
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:21
CPC Classifications
C; C08; C08G; C08G75/00; C08G75/20; C08G75/205; C08G75/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A THREE-COMPONENT SOLID POLYMER CONSISTING OF FROM .10 TO 10 MOLE PER CENT OF SULFUR DIOXIDE, FROM .90 TO 39 MOLE PER CENT OF CARBON MONOXIDE AND FROM 99 TO 51 MOLE PER CENT OF A POLYMERIZABLE ALIPHATIC MONOOLEFINIC HYDROCARBON CONTAINING A TERMINAL METHYLENE GROUP AND FROM 2 TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
52 words
A THREE-COMPONENT SOLID POLYMER CONSISTING OF FROM .10 TO 10 MOLE PER CENT OF SULFUR DIOXIDE, FROM .90 TO 39 MOLE PER CENT OF CARBON MONOXIDE AND FROM 99 TO 51 MOLE PER CENT OF A POLYMERIZABLE ALIPHATIC MONOOLEFINIC HYDROCARBON CONTAINING A TERMINAL METHYLENE GROUP AND FROM 2 TO 4 CARBON ATOMS.
References Cited (Backward Citations)
US2471959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |