US3261373A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Damper blade linkage
Assignee: Ventfabrics Inc
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Filing: 1963-08-01
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Granted: 1966-07-19
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Expires: 1983-08-01
Abstract
No abstract record available.
Inventors
- 👤 Wayne F Ridenour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:57
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/15; E; E06; E06B; E06B7/00; E06B7/02; E06B7/08; E06B7/084; F23; F23L; F23L13/00; F23L13/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87265; Y10T137/8741; Y10T137/87442; Y10T137/87467; Y10T137/87483
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
83 words
AN OPPOSED DAMPER LINKAGE ASSEMBLY FOR OPERTIVELY CONECTING ADJACENT PIVOTALLY MOUNTED DAMPER BLADES COMPRISING A HIGH BRACKET SECURED TO ONE BLADE, A LOW BRACKET SECURED TO THE ADJACENT BLADE, AND A LINKAGE ROD INTERCONNECTING THE TWO BRACKETS, SAID HIGH BRACKET HAVING A MARK FOR LOCATING THE BRACKET ON THE DAMPER BLADE UPON WHICH IT IS MOUNTED, SAID HIGH BRACKET ALSO HAVING AN OUTWARDLY EXTENDING ARM HAVING MARKS THEREON CORRESPONDING TO DISTANCE BETWEEN BLADE CENTER, SAID LOW BRACKET HAVING MARKS CORRESPONDING TO DISTANCE BETWEEN
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) | 1969-07-18 | 1970-01-17 | 1970-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-18 | 1974-01-17 | 1974-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-18 | 1978-01-17 | 1978-07-19 | $7700.00 | Window Closed / Lapsed |