US2503771A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oven with paper conveyer
Assignee: ROBERT GEORGE WHITE
•
Filing: 1944-12-29
•
Granted: 1950-04-11
•
Expires: 1964-12-29
Abstract
No abstract record available.
Inventors
- 👤 Carlton W Roll
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:25
CPC Classifications
A; A21; A21B; A21B1/00; A21B1/42; A21B1/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1496651A
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US1680979A
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US1795638A
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US1970900A
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US2129796A
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US2120829A
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US2196000A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |