US2497291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymers of ethylene with vinyl chloride
Assignee: EIDP Inc
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Filing: 1947-03-13
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Granted: 1950-02-14
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Expires: 1967-03-13
Abstract
No abstract record available.
Inventors
- 👤 Merlin M Brubaker
- 👤 John R Roland
- 👤 Merlin D Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:47
CPC Classifications
C; C08; C08F; C08F214/00; C08F214/02; C08F214/04; C08F214/06; C08F10/00; C08K; C08K5/00; C08K5/01; C09; C09D; C09D127/00; C09D127/02; C09D127/04; C09D127/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A SOLID ETHYLENE/VINYL CHLORIDE POLYMER CONTAINING 74% TO 90% BY WEIGHT OF COMBINED VINYL CHLORIDE, COPOLYMERIZED WITH CORRESPONDINGLY FROM 26% TO 10% BY WEIGHT OF COMBINED ETHYLENE, SAID POLYMER BEING SOLUBLE IN AN AROMATIC HYDROCARBON SOLVEN TO THE EXTENT OF AT LEAST 20% BY WEIGHT.
Claim 2
Dependent Claim
45 words
A SOLID ETHYLENE/VINYL CHLORIDE POLYMER CONTAINING 74% TO 90% BY WEIGHT OF COMBINED VINYL CHLORIDE, COPOLYMERIZED WITH CORRESPONDINGLY FROM 26% TO 10% BY WEIGHT OF COMBINED ETHYLENE, SAID POLYMER BEING SOLUBLE IN AN AROMATIC HYDROCARBON SOLVEN TO THE EXTENT OF AT LEAST 20% BY WEIGHT.
References Cited (Backward Citations)
US2200421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |