Patent US2640223A successfully refreshed from Google Patents.
US2640223A
Expired / Lapsed
US
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Oyster preparing machine
Assignee: Individual
•
Filing: 1948-06-08
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Granted: 1953-06-02
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Expires: 1968-06-08
Abstract
No abstract record available.
Inventors
- 👤 Hubert B Secor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:19
CPC Classifications
A; A22; A22C; A22C29/00; A22C29/04; A22C29/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2228135A
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US1011378A
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US1117821A
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US1142187A
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GB267227A
Cited
US1757278A
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US1779046A
Cited
US1996022A
Cited
US2201634A
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US2504726A
Cited
DK47478A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-01 | 1956-12-01 | 1957-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-01 | 1960-12-01 | 1961-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-01 | 1964-12-01 | 1965-06-02 | $7700.00 | Window Closed / Lapsed |