Patent US3466705A successfully refreshed from Google Patents.
US3466705A
Expired / Lapsed
US
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Apparatus for extruding foamable plastic materials in tubular form
Assignee: OI Glass Inc
•
Filing: 1966-03-07
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Granted: 1969-09-16
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Expires: 1986-03-07
Abstract
No abstract record available.
Inventors
- 👤 Carlton A Richie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:00
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/20; B29C44/32; B29C44/322; B29C44/324; B29C44/34; B29C44/36; B29C44/46; B29C44/50; B29C44/507; B29K; B29K2105/00; B29K2105/04; B29L; B29L2023/00; Y; Y10; Y10S; Y10S521/00; Y10S521/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2766480A
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US3170972A
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US3265552A
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US3230902A
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US3265786A
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US3299192A
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US3309443A
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US3339235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-15 | 1973-03-17 | 1973-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-15 | 1977-03-17 | 1977-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-15 | 1981-03-17 | 1981-09-16 | $7700.00 | Window Closed / Lapsed |