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US2748247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Infrared device
Assignee: Edwin L Wiegand Co
•
Filing: 1953-04-10
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Granted: 1956-05-29
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Expires: 1973-04-10
Abstract
No abstract record available.
Inventors
- 👤 Lloyd S Kozbelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:35
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/06; F24C7/062; F24C7/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1531414A
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US2068423A
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US2161793A
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US2303873A
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US2325358A
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US2455186A
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US2514618A
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US2615117A
Cited
US2712587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |