Reversible heat pump with cycle enhancements
Number of patents in Portfolio can not be more than 2000
United States of America
Stats
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N/A
Issued Date -
N/A
app pub date -
Oct 2, 2017
filing date -
Oct 2, 2017
priority date (Note) -
In Force
status (Latency Note)
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Importance

US Family Size
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Non-US Coverage
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Abstract
A cycle enhancement apparatus is provided. The apparatus has a first side entrance line and exit line, both connected to a first side of a refrigerant line, and a second side entrance line and exit line, both connected to a second side of the refrigerant line. One-way valves prevent flow through the first side entrance line toward the first side, through the first side exit line away from the first side, through the second side entrance line toward the second side, and through the second side exit line away from the second side. The apparatus has a cycle enhancement line. The cycle enhancement line has an entrance portion, connected to the first side entrance line and the second side entrance line, an exit portion, connected to the first side exit line and the second side exit line, and a cycle enhancement between the entrance portion and the exit portion.
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
LENNOX INDUSTRIES INC | 2140 LAKE PARK BLVD RICHARDSON TX 75080 |
International Classification(s)

- 2017 Application Filing Year
- F25B Class
- 1295 Applications Filed
- 923 Patents Issued To-Date
- 71.28 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Uselton, Robert B | Plano, US | 49 | 555 |
# of filed Patents : 49 Total Citations : 555 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- F25B Class
- 0 % this patent is cited more than
- 6 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jun 24, 2027 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jun 24, 2031 |
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
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Aug 27, 2024 | P | Publication | |
Aug 07, 2024 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
May 03, 2022 | FEPP | FEE PAYMENT PROCEDURE | free format text: PETITION RELATED TO MAINTENANCE FEES GRANTED (ORIGINAL EVENT CODE: PTGR); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Feb 05, 2019 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO SMALL (ORIGINAL EVENT CODE: SMAL); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Dec 03, 2018 | F | Filing | |
Dec 03, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: ENTITY STATUS SET TO UNDISCOUNTED (ORIGINAL EVENT CODE: BIG.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |

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