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Patent US3396652A successfully refreshed from Google Patents.
US3396652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating skylight with heat vent
Assignee: Jenn Air Corp
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Filing: 1966-06-15
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Granted: 1968-08-13
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Expires: 1986-06-15
Abstract
No abstract record available.
Inventors
- 👤 William E Morrison
- 👤 Painter Phillip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:31
CPC Classifications
E; E04; E04D; E04D13/00; E04D13/03; E04D13/0325; F; F24; F24F; F24F7/00; F24F7/02; F24F7/025
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2912920A
Cited
US3004485A
Cited
US3085490A
Cited
US3212425A
Cited
US3281113A
Cited
US3306179A
Cited
US3323438A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-08-13 | 1972-02-12 | 1972-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-08-13 | 1976-02-12 | 1976-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-08-13 | 1980-02-12 | 1980-08-13 | $7700.00 | Window Closed / Lapsed |