Hydrodynamic retarder system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 16, 2021
Grant Date -
N/A
app pub date -
Apr 10, 2018
filing date -
Apr 11, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Loading Importance Indicators... 
Abstract
A hydrodynamic retarder system for a vehicle is provided. In a first operational state with the vehicle powered on and a retarder deactivated, a pump directs fluid flow from a fluid sump to a retarder inlet valve in the closed position and directs fluid flow to a second sump. In a second operational state with the vehicle on and the retarder activated, the retarder inlet valve moves to the open position directing fluid flow into a retarder chamber and flowing out of the retarder chamber after filling a second volume and discharging to the second sump.
First Claim
Other Claims data not available
Family
Loading Family data...
International Classification(s)
- 2018 Application Filing Year
- B60T Class
- 1146 Applications Filed
- 882 Patents Issued To-Date
- 76.97 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- B60T Class
- 0 % this patent is cited more than
- 4 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | May 16, 2025 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | May 16, 2029 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 16, 2033 |