US2512875A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular radiant heating panel
Assignee: —
•
Filing: —
•
Granted: 1950-06-27
•
Expires: 1967-06-27
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:26
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; F24H; F24H3/00; F24H3/002; H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/28; H05B2203/00; H05B2203/032; Y; Y10; Y10S; Y10S165/00; Y10S165/907; Y10T; Y10T428/00; Y10T428/24; Y10T428/24149
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US738970A
Cited
GB224321A
Cited
GB224648A
Cited
US1740336A
Cited
US1767716A
Cited
US2061107A
Cited
US2087573A
Cited
CH218846A
Cited
US2438205A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-06-26 | 1953-12-26 | 1954-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-26 | 1957-12-26 | 1958-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-26 | 1961-12-26 | 1962-06-27 | $7700.00 | Window Closed / Lapsed |