US2780834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruder equipped with a mulling head
Assignee: EIDP Inc
•
Filing: 1955-10-06
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Granted: 1957-02-12
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Expires: 1975-10-06
Abstract
No abstract record available.
Inventors
- 👤 Bernhardt Ernest Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:04
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/92; B29C48/03; B29C48/36; B29C48/395; B29C2948/00; B29C2948/92; B29C2948/92009; B29C2948/92019; B29C2948/92209; B29C2948/92323; B29C2948/92361; B29C2948/9238; B29C2948/924; B29C2948/92409; B29C2948/92504; B29C2948/92514; B29C2948/92704; B29C2948/92819; B29C2948/92857; B29C2948/92904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2469999A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-12 | 1960-08-13 | 1961-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-12 | 1964-08-13 | 1965-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-12 | 1968-08-13 | 1969-02-12 | $7700.00 | Window Closed / Lapsed |