Patent US2493857A successfully refreshed from Google Patents.
US2493857A
Expired / Lapsed
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Bake oven conveyer
Assignee: Middleby Marshall Oven Co
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Filing: 1948-03-27
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Granted: 1950-01-10
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Expires: 1968-03-27
Abstract
No abstract record available.
Inventors
- 👤 Maxwell F Cargill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:16
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/12; B65G17/123; A; A21; A21B; A21B1/00; A21B1/42; A21B1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2390455A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |