Patent US5679723A successfully refreshed from Google Patents.
Patent US2535863A successfully refreshed from Google Patents.
US2535863A
Expired / Lapsed
US
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Ventilating device for a kitchen and a kitchen stove
Assignee: Individual
•
Filing: 1946-09-03
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Granted: 1950-12-26
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Expires: 1966-09-03
Abstract
No abstract record available.
Inventors
- 👤 William A Pledger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:01
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; F24C15/2042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1671524A
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US1825245A
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Cited
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US2398508A
Cited
US2392038A
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US2369375A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-25 | 1954-06-26 | 1954-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-25 | 1958-06-26 | 1958-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-25 | 1962-06-26 | 1962-12-26 | $7700.00 | Window Closed / Lapsed |