US3328074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Top construction for convertible automobiles
Assignee: Individual
•
Filing: 1965-09-20
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Granted: 1967-06-27
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Expires: 1985-09-20
Abstract
No abstract record available.
Inventors
- 👤 Walter J Van Rossem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:05
CPC Classifications
B; B60; B60H; B60H1/00; B60H1/24; B60H1/26; B60H1/262; B62; B62D; B62D35/00; B60H1/00007; B60H1/00207; B60H2001/00235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A CONSTRUCTION FOR A TOP FOR AN AUTOMOBILE OR OTHER VEHICLE, COMPRISING: A FLEXIBLE TOP OVER AT LEAST A PORTION OF THE VEHICLE AND EXPOSED AT ITS UPPER SURFACE TO A ZONE OF TURBULENT AIR MOVEMENT WHEN THE VEHICLE IS MOVING FORWARDLY; AND MEANS DEFINING AN AIR DUCT ASSOCIATED WITH SAID TOP, SAID DUCT HAVING ITS FORWARD END AT THE FRONT END OF THE TOP OPEN TO RECEIVE AIR AS A RESULT OF FORWARD MOVEMENT OF THE VEHICLE AND HAVING ITS REAR END OPEN AND DISPOSED ABOVE THE FLEXIBLE TOP THEREOF TO DISCHARGE AIR OVER THE FLEXIBLE TOP AND INTO THE ZONE OF TURBULENCE WHEREBY THE TURBULENCE IN SAID ZONE IS DECREASED AND THE DOWNWARD AIR PRESSURE IN THE ZONE ON THE FLEXIBLE TOP IS INCREASED, SAID DUCT BEING OF PROGRESSIVELY DECREASING CROSS-SECTION INWARDLY FROM THE FORWARD END THEREOF FOR AT LEAST A PORTION OF ITS LENGTH.
Claim 2
Dependent Claim
147 words
A CONSTRUCTION FOR A TOP FOR AN AUTOMOBILE OR OTHER VEHICLE, COMPRISING: A FLEXIBLE TOP OVER AT LEAST A PORTION OF THE VEHICLE AND EXPOSED AT ITS UPPER SURFACE TO A ZONE OF TURBULENT AIR MOVEMENT WHEN THE VEHICLE IS MOVING FORWARDLY; AND MEANS DEFINING AN AIR DUCT ASSOCIATED WITH SAID TOP, SAID DUCT HAVING ITS FORWARD END AT THE FRONT END OF THE TOP OPEN TO RECEIVE AIR AS A RESULT OF FORWARD MOVEMENT OF THE VEHICLE AND HAVING ITS REAR END OPEN AND DISPOSED ABOVE THE FLEXIBLE TOP THEREOF TO DISCHARGE AIR OVER THE FLEXIBLE TOP AND INTO THE ZONE OF TURBULENCE WHEREBY THE TURBULENCE IN SAID ZONE IS DECREASED AND THE DOWNWARD AIR PRESSURE IN THE ZONE ON THE FLEXIBLE TOP IS INCREASED, SAID DUCT BEING OF PROGRESSIVELY DECREASING CROSS-SECTION INWARDLY FROM THE FORWARD END THEREOF FOR AT LEAST A PORTION OF ITS LENGTH.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |