US2417842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooking stove
Assignee: Sanford
•
Filing: 1942-03-17
•
Granted: 1947-03-25
•
Expires: 1962-03-17
Abstract
No abstract record available.
Inventors
- 👤 Hugh W Sanford
- 👤 Jr William Porter Biddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:05
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/32; F24C15/322; F24B; F24B5/00; F24B5/06; F24C15/20; F24C15/2007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US550865A
Cited
DE569801C
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US1932182A
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US1664443A
Cited
US1950212A
Cited
US2133184A
Cited
US2128698A
Cited
GB471084A
Cited
US2308887A
Cited
US2330495A
Cited
US2264525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-24 | 1950-09-23 | 1951-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-24 | 1954-09-23 | 1955-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-24 | 1958-09-23 | 1959-03-25 | $7700.00 | Window Closed / Lapsed |