US3563870A
Expired / Lapsed
US
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Melt strength and melt extensibility of irradiated linear polyethylene
Assignee: Dow Chemical Co
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Filing: 1969-01-23
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Granted: 1971-02-16
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Expires: 1989-01-23
Abstract
Abstract MELT STRENGTH AND MELT EXTENSIBILITY OF LINEAR POLYETHYLENE ARE IMPROVED BY EXPOSING SAID POLYEHTYLENE TO A SMALL DOSE OF HIGH ENERGY RADIATION.
Inventors
- 👤 Lu Ho Tung
- 👤 Harold J Donald
- 👤 Robert J Caiola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/28; B; B29; B29B; B29B13/00; B29B13/08; B29B9/00; B29B9/16; B29C; B29C35/00; B29C35/02; B29C35/08; B29C35/0805; B29C2035/0844; B29C2035/085; B29C35/0866; B29C2035/0872; B29C2035/0877; B29C2035/0883; B29K; B29K2023/00; B29K2023/04; B29K2023/06; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10S; Y10S264/00; Y10S264/18
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |