US3411428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating hood for food cooking device
Assignee: AHLRICH ALBERT G FORTY-FIVE PERCENT (45%) OF FULL AND UNDIVIDED RIGHT
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Filing: 1966-06-27
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Granted: 1968-11-19
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Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Willard K Ahlrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:26
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/20; F24C15/2028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2579401A
Cited
US2565933A
Cited
US2562130A
Cited
US2627220A
Cited
US2711683A
Cited
US3285154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |