Patent US2207871A successfully refreshed from Google Patents.
US2207871A
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US
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Electric range unit control mechanism embodying material of changeable character
Assignee: Proctor and Schwartz Inc
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Filing: 1938-06-04
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Granted: 1940-07-16
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Expires: 1958-06-04
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Myers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B1/0219; F; F24; F24C; F24C15/00; F24C15/10; F24C15/102; F24C15/105; F24C15/106
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) | 1943-07-16 | 1944-01-15 | 1944-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-07-16 | 1948-01-15 | 1948-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-07-16 | 1952-01-15 | 1952-07-16 | $7700.00 | Window Closed / Lapsed |