US2540295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating panel
Assignee: Uniroyal Inc
•
Filing: 1947-10-25
•
Granted: 1951-02-06
•
Expires: 1967-10-25
Abstract
No abstract record available.
Inventors
- 👤 John F Schreiber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:06
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; H; H05; H05B; H05B3/00; H05B3/10; H05B3/12; H05B3/14; H05B3/146; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB224648A
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GB238024A
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US1891595A
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US2042742A
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GB427255A
Cited
US2138217A
Cited
GB493533A
Cited
GB469744A
Cited
US2314766A
Cited
US2328666A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-05 | 1954-08-07 | 1955-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-05 | 1958-08-07 | 1959-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-05 | 1962-08-07 | 1963-02-06 | $7700.00 | Window Closed / Lapsed |