Patent US3341480A successfully refreshed from Google Patents.
US3341480A
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Cellular polyolefin
Assignee: Hercules LLC
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Filing: 1964-07-02
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Granted: 1967-09-12
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Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 George B Feild
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:12
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0014; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/27; C08K5/28; C08J2323/00; C08J2323/02; C08J2323/16; Y; Y10; Y10S; Y10S264/00; Y10S264/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2387730A
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US2532243A
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BE538782A
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GB856735A
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US3067147A
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US3058944A
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US3137745A
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US3250731A
Cited
US3250730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |