Underground tank assembly with internal bladder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Mar 10, 1987
Grant Date -
N/A
app pub date -
Nov 20, 1984
filing date -
Nov 20, 1984
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
An improved underground tank assembly is provided for storing motor fuels, such as gasoline or diesel fuel. the underground tank assembly has an expandable bladder-like primary tank positioned within the interior of a rigid secondary tank. Advantageously, the secondary tank meets most safety regulations and secondary containment laws by dependably providing for secondary containment of any leakage of motor fuel from the primary tank. The underground tank assembly has numerous alternative conduit arrangements for ease and flexibility of assembly, installation, and manufacture. The underground tank assembly also desirably has a protective barrier wall for protecting and isolating the conduits from the expanded primary tank. Other safety equipment and controls, such as leakage detectors, are provided.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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STANDARD OIL COMPANY A CORP OF INDIANA | CHICAGO IL |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Strock, Dennis J | Woodridge, IL | 15 | 232 |
# of filed Patents : 15 Total Citations : 232 |
Cited Art Landscape
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Patent Citation Ranking
- 14 Citation Count
- B65D Class
- 0 % this patent is cited more than
- 38 Age
Forward Cite Landscape
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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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 23, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 15, 1995 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 15, 1995 |
Mar 12, 1995 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Oct 18, 1994 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Aug 15, 1990 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 09, 1989 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 10, 1987 | I | Issuance | |
Nov 20, 1984 | F | Filing | |
Nov 20, 1984 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:STROCK, DENNIS J.;REEL/FRAME:004373/0683 Owner name: STANDARD OIL COMPANY CHICAGO ILLINOIS A CORP OF IN Effective Date: Nov 20, 1984 |

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