US3587442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Louver assembly
Assignee: Keeler Brass Co
•
Filing: 1969-03-13
•
Granted: 1971-06-28
•
Expires: 1989-03-13
Abstract
Abstract THE DISCLOSURE RELATES TO A LOUVER ASSEMBLY FOR AIR CONDITIONING AND THE LIKE. THE ASSEMBLY HAS A HOUSING WHICH ROTATABLY SUPPORTS A PLURALITY OF VANES IN PARALLEL ALIGNMENT. EACH VANE HAS ROTATES IN UNISON WHEN ONE OF THE CAM SO THAT EACH VANE ROTATES IN UNISON WHEN ONE OF THE VANES IS MOVED. THE SIDES OF THE HOUSING HAVE RESILIENTLY MOUNTED JOURNALS FOR ROTATABLY SUPPORTING THE LOUVER ASSEMBLY IN AN END OF A DUCT.
Inventors
- 👤 Gerald V Jakeway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:35
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/075
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |