US3371379A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for degassing thermoplastic material in screw presses
Assignee: Reifenhauser KG
•
Filing: 1966-01-24
•
Granted: 1968-03-05
•
Expires: 1986-01-24
Abstract
No abstract record available.
Inventors
- 👤 Reifenhauser Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:38
CPC Classifications
B; B29; B29C; B29C44/00; B29C44/02; B29C44/04; B29C44/0492; B29B; B29B7/00; B29B7/80; B29B7/84; B29B7/845; B29B7/86; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/76; B29C48/763; B29C48/765; B29C48/766; B29C48/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478842A
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US2434707A
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US2774105A
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US3040005A
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US3023456A
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US3150214A
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US3154007A
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US3121914A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |