Patent US2765441A successfully refreshed from Google Patents.
US2765441A
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Apparatus for monitoring and extruding plastic materials
Assignee: AT&T Inc
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Filing: 1953-09-03
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Granted: 1956-10-02
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Expires: 1973-09-03
Abstract
No abstract record available.
Inventors
- 👤 Richard D Gambrill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:33
CPC Classifications
H; H01; H01B; H01B13/00; H01B13/06; H01B13/14; B; B29; B29C; B29C48/00; B29C48/03; B29C48/05; B29C48/15; B29C48/25; B29C48/92; G; G01; G01R; G01R31/00; G01R31/50; G01R31/58; G01R31/59; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92019; B29C2948/92085; B29C2948/92095; B29C2948/92209; B29C2948/92238; B29C2948/92504; B29C2948/92733; B29C2948/92819; B29C2948/92857; B29C2948/92876; B29C2948/92895; B29C2948/92904; B29C2948/92942; B29C2948/92952; Y; Y10; Y10S; Y10S425/00; Y10S425/055; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/142
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-02 | 1960-04-02 | 1960-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-02 | 1964-04-02 | 1964-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-02 | 1968-04-02 | 1968-10-02 | $7700.00 | Window Closed / Lapsed |