Patent US1788945A successfully refreshed from Google Patents.
Patent US2573121A successfully refreshed from Google Patents.
US2573121A
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US
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Radiant heating and drying device
Assignee: Individual
•
Filing: 1950-04-20
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Granted: 1951-10-30
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Expires: 1970-04-20
Abstract
No abstract record available.
Inventors
- 👤 Richard F Wandelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:42
CPC Classifications
F; F26; F26B; F26B13/00; F26B13/10; F26B3/00; F26B3/28; F26B3/283
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) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |