US3267834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilating system including louver sheet members
Assignee: Reynolds Metals Co
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Filing: 1963-09-16
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Granted: 1966-08-23
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Expires: 1983-09-16
Abstract
No abstract record available.
Inventors
- 👤 Corwin G Hockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:51
CPC Classifications
E; E06; E06B; E06B7/00; E06B7/02; F; F24; F24F; F24F13/00; F24F13/08; F24F13/082
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
112 words
A VENTILATOR SHEET MEMBER HAVING A CENTRAL HORIZONTAL APERTURED MAIN VENTILATOR PORTION WITH AN OUTER VERTICAL DOWNWARD EDGE VENTILATOR EXTENSION AND WITH AN INNER VERTICAL UPWARD EDGE VENTILATOR EXTENSION TO BE SECURED TO A VERTICAL FRAMING CONSTRUCTION, SAID DOWNWARD EDGE VENTILATOR EXTENSION HAVING AN INWARD VENTILATOR HOOK, AND SAID UPWARD EDGE VENTILATOR EXTENSION HAVING AN OUTWARD VENTILATOR HOOK SAID DOWNWARD EDGE VENTILATOR EXTENSION AND SAID INWARD VENTILATOR HOOK BEING SYMMETRICAL WITH SAID UPWARD EDGE VENTILATOR EXTENSION AND SAID OUTWARD VENTILATOR HOOK, WITH SAID INWARD VENTILATOR HOOK HAVING AN INWARD HORIZONTAL EXTENSION AND AN UPWARD VERTICAL EXTENSION, AND WITH SAID OUTWARD VENTILATOR HOOK HAVING AN OUTWARD HORIZONTAL EXTENSION AND A DOWNWARD VERTICAL EXTENSION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |