Patent US2314766A successfully refreshed from Google Patents.
US2314766A
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Surface heating element
Assignee: Uniroyal Inc
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Filing: 1940-04-17
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Granted: 1943-03-23
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Expires: 1960-04-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Bull
- 👤 Glenn G Havens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:38
CPC Classifications
F; F24; F24D; F24D13/00; F24D13/02; F24D13/022; F24D13/024; Y; Y02; Y02B; Y02B30/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-03-22 | 1946-09-21 | 1947-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-03-22 | 1950-09-21 | 1951-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-03-22 | 1954-09-21 | 1955-03-23 | $7700.00 | Window Closed / Lapsed |