US2623150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical radiant heating panel
Assignee: THERMORAY Corp
•
Filing: 1951-06-15
•
Granted: 1952-12-23
•
Expires: 1971-06-15
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter Boecher
- 👤 Herbert J Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:24
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/04; F24C7/043
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-23 | 1956-06-23 | 1956-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-23 | 1960-06-23 | 1960-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-23 | 1964-06-23 | 1964-12-23 | $7700.00 | Window Closed / Lapsed |