US3391689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Unitized cooking range and air cleaner
Assignee: Individual
•
Filing: 1966-12-16
•
Granted: 1968-07-09
•
Expires: 1986-12-16
Abstract
No abstract record available.
Inventors
- 👤 Roger Raul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:25
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; F24C15/2042; Y; Y10; Y10S; Y10S55/00; Y10S55/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US603386A
Cited
GB370160A
Cited
GB370159A
Cited
US2162019A
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US2482952A
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US2554694A
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US2634718A
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US2584613A
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US2674991A
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US2806465A
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US2815427A
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US2905073A
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FR1156581A
Cited
US2974663A
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US3011492A
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US3176447A
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US3213847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |