US2817876A
Expired / Lapsed
US
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Continuously operable worm press for deaerating pasty masses
Assignee: Buehler AG
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Filing: 1955-02-07
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Granted: 1957-12-31
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Expires: 1975-02-07
Abstract
No abstract record available.
Inventors
- 👤 Gandelli Amos
- 👤 Polo Amedeo De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:39
CPC Classifications
A; A23; A23G; A23G1/00; A23G1/04; A23G1/08; A23G1/18; A23G1/20; A23G1/201; A23G1/202; B; B29; B29C; B29C48/00; B29C48/03; B29C48/25; B29C48/268; B29C48/36; B29C48/50; B29C48/76; B29C48/765; B29C48/766; B29C48/767; B29C48/92; B30; B30B; B30B11/00; B30B11/22; B30B11/24; B30B11/246; C; C11; C11D; C11D13/00; C11D13/14; C11D13/18; B29C2948/00; B29C2948/92; B29C2948/92504; B29C2948/92723; B29C2948/92819; B29C2948/92857; B29C2948/92876; B29C2948/92895
Claims Analysis
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References Cited (Backward Citations)
NL37094C
Cited
NL38009C
Cited
US1964266A
Cited
GB435210A
Cited
GB514444A
Cited
US2378539A
Cited
US2617167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-30 | 1961-07-01 | 1961-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-30 | 1965-07-01 | 1965-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-30 | 1969-07-01 | 1969-12-31 | $7700.00 | Window Closed / Lapsed |