Carburetor fuel supply system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 23, 2015
Grant Date -
Jul 11, 2013
app pub date -
Mar 6, 2013
filing date -
Nov 15, 2011
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
In at least some implementations a carburetor may include a main bore through which a fuel and air mixture is delivered from the carburetor, a fuel metering assembly, a supplemental fuel pump and a valve. The supplemental fuel pump includes a diaphragm that defines a fuel chamber on one side from which fuel may be discharged to at least temporarily increase the amount of fuel discharged from the carburetor and a reference chamber on the other side that is communicated with a reference pressure source. The valve is electrically actuated and moveable between first and second positions to at least substantially prevent communication of the reference pressure source with the supplemental fuel pump diaphragm when the valve is in its second position to thereby inhibit or prevent fuel being discharged from the fuel chamber.
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 | |
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WALBRO LLC | 2015 W RIVER ROAD SUITE 202 TUCSON AS 85704 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kus, Dale P | Cass City, US | 12 | 92 |
# of filed Patents : 12 Total Citations : 92 |
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Patent Citation Ranking
- 10 Citation Count
- F02M Class
- 8.59 % this patent is cited more than
- 10 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 23, 2026 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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Jan 22, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 13, 1996 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 13, 1996 |
Mar 10, 1996 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Oct 17, 1995 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 29, 1991 | FEPP | FEE PAYMENT PROCEDURE | free format text: SURCHARGE FOR LATE PAYMENT, PL 96-517 (ORIGINAL EVENT CODE: M176); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Nov 29, 1991 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, PL 96-517 (ORIGINAL EVENT CODE: M171); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Oct 15, 1991 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 25, 1988 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST. EFFECTIVE;ASSIGNOR:FMC CORPORATION, (A DE. CORP.);REEL/FRAME:004864/0391 Owner name: SUMITOMO (S.H.I.) CONSTRUCTION MACHINERY CO., LTD. Effective Date: Apr 25, 1988 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FMC CORPORATION, (A DE. CORP.);REEL/FRAME:004864/0391 Owner name: SUMITOMO (S.H.I.) CONSTRUCTION MACHINERY CO., LTD. Effective Date: Apr 25, 1988 |
Oct 13, 1987 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 13, 1987 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, PL 96-517 (ORIGINAL EVENT CODE: M170); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Mar 13, 1984 | I | Issuance | |
Jan 22, 1983 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SCHERRER, EDWARD P.;REEL/FRAME:004204/0945 Owner name: FMC CORPORATION, SAN JOSE, CA ACORP OF DE Effective Date: Jan 22, 1983 |
Jan 25, 1982 | F | Filing | |
Jan 25, 1982 | PD | Priority Date |

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