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Patent US2450399A successfully refreshed from Google Patents.
US2450399A
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Indicator for electric ranges
Assignee: TAPPAN STOVE Co
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Filing: 1948-01-09
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Granted: 1948-09-28
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Expires: 1968-01-09
Abstract
No abstract record available.
Inventors
- 👤 Robert G Sheidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:10
CPC Classifications
F; F24; F24C; F24C7/00; F24C7/08; F24C7/082
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-28 | 1952-03-29 | 1952-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-28 | 1956-03-29 | 1956-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-28 | 1960-03-29 | 1960-09-28 | $7700.00 | Window Closed / Lapsed |