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US2495513A
Expired / Lapsed
US
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Electric (infrared) heating appliance
Assignee: Individual
•
Filing: 1945-02-15
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Granted: 1950-01-24
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Expires: 1965-02-15
Abstract
No abstract record available.
Inventors
- 👤 Charles C Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:14
CPC Classifications
A; A61; A61N; A61N5/00; A61N5/06; H; H05; H05B; H05B3/00; H05B3/0033; H05B3/0038; H05B3/0066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1255840A
Cited
US1517759A
Cited
US1689850A
Cited
US1807441A
Cited
US1830084A
Cited
GB543268A
Cited
US2352159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-23 | 1953-07-25 | 1954-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-23 | 1957-07-25 | 1958-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-23 | 1961-07-25 | 1962-01-24 | $7700.00 | Window Closed / Lapsed |