Patent US618031A successfully refreshed from Google Patents.
Patent US3572233A successfully refreshed from Google Patents.
US3572233A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ventilation and defrost-air-ductoutlet for automobiles
Assignee: Motors Liquidation Co
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Filing: 1969-11-19
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Granted: 1971-03-23
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Expires: 1989-11-19
Abstract
Abstract A VENTILATION AND DEFROST AIR-DUCT-OUTLET COMPRISES A FIRST DUCT PART CONNECTABLE TO A HEATED AIR SUPPLY, A SECOND DUCT PART CONNECTABLE TO A FRESH AIR SUPPLY, AND AN OUTLET LOUVRE ASSEMBLY HAVING FIXED LOUVRES OPPOSITE THE FIRST DUCT PART, AND HAVING OPPOSITE THE SECOND DUCT PART A RECTANGULAR FRAME CONTAINING LOUVRES PIVOTABLE ABOUT AN AXIS TRANSVERSE TO THE AXIS OF THE LOUVRES. THE LOUVRES IN THE FRAME ARE CONNECTED FOR SIMULTANEOUS PIVOTING BY A WEB AT RIGHT ANGLES TO THE LOUVRES.
Inventors
- 👤 Alfons Bar
- 👤 Wolfgang Jobst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:50
CPC Classifications
B; B60; B60S; B60S1/00; B60S1/02; B60S1/54; B60H; B60H1/00; B60H1/34; B60H1/3414; B60H1/3428
Claims Analysis
Total Claims: 0
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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) | 1974-03-22 | 1974-09-21 | 1975-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-22 | 1978-09-21 | 1979-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-22 | 1982-09-21 | 1983-03-23 | $7700.00 | Window Closed / Lapsed |