Engine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Nov 16, 2021
Grant Date -
Dec 17, 2020
app pub date -
Sep 1, 2020
filing date -
Mar 16, 2018
priority date (Note) -
In Force
status (Latency Note)
Importance
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Abstract
Provided is an engine, including: a cylinder; a piston accommodated in the cylinder; a combustion chamber facing the piston; a sliding portion (large-diameter portion) configured to perform a stroke motion together with the piston; a hydraulic surface of the sliding portion facing a side opposite to the combustion chamber; a hydraulic chamber, which the hydraulic surface faces; and an auxiliary hydraulic chamber, which communicates with the hydraulic chamber, and has a volume changeable in accordance with a hydraulic pressure in the hydraulic chamber.
First Claim
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International Classification(s)
- 2020 Application Filing Year
- F02M Class
- 833 Applications Filed
- 576 Patents Issued To-Date
- 69.15 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- F02M 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 |
