Patent US2921577A successfully refreshed from Google Patents.
US2921577A
Expired / Lapsed
US
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Simplified reflector oven
Assignee: Individual
•
Filing: 1956-03-29
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Granted: 1960-01-19
•
Expires: 1976-03-29
Abstract
No abstract record available.
Inventors
- 👤 Edmund D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:32
CPC Classifications
F; F24; F24B; F24B1/00; F24B1/20; F24B1/202; F24B1/205; A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0763
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US34468A
Cited
US132167A
Cited
US216003A
Cited
US240639A
Cited
US449432A
Cited
US2469885A
Cited
US2580925A
Cited
US2543115A
Cited
US2757664A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |