Multi-chemical dispensing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 19, 2008
Grant Date -
May 18, 2006
app pub date -
Nov 15, 2004
filing date -
Nov 15, 2004
priority date (Note) -
Expired
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
An apparatus for selective eductive dispensing of multiple chemical fluids from separate fluid containers includes a motive fluid inlet; an eductor in fluid communication with said motive fluid inlet; a selector switch defining at least one inlet and an outlet therein, said inlet and outlet in fluid communication with one another and said outlet in fluid communication with said eductor and wherein said selector switch inlet is in selective fluid communication with said fluid containers depending on the position of the selector switch; and a valve located between said motive fluid inlet and said eductor, said valve selectively opened and closed by movement of said selector switch.
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 | |
---|---|---|
DEMA ENGINEERING COMPANY | 10020 BIG BEND BLVD ST LOUIS MO 63122-6422 |
International Classification(s)

- 2004 Application Filing Year
- B67D Class
- 506 Applications Filed
- 191 Patents Issued To-Date
- 37.75 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Naslund, Paul E | St. Louis, MO | 7 | 94 |
# of filed Patents : 7 Total Citations : 94 | |||
Schuleter, James | Dardenne Prairie, MO | 1 | 29 |
# of filed Patents : 1 Total Citations : 29 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 29 Citation Count
- B67D Class
- 76.92 % this patent is cited more than
- 17 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
---|---|---|---|
Dec 15, 2024 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8 |
Dec 09, 2020 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Apr 01, 2018 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEDICAL RESEARCH COUNCIL;REEL/FRAME:046469/0108 Owner name: UNITED KINGDOM RESEARCH AND INNOVATION, UNITED KINGDOM Effective Date: Apr 01, 2018 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MEDICAL RESEARCH COUNCIL;REEL/FRAME:046469/0108 Owner name: UNITED KINGDOM RESEARCH AND INNOVATION, UNITED KIN Effective Date: Apr 01, 2018 |
Jun 20, 2017 | I | Issuance | |
May 31, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 01, 2016 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GUEDAT, PHILIPPE;BERTOLOTTI, ANNE;SIGNING DATES FROM 20150731 TO 20150818;REEL/FRAME:037866/0274 Owner name: MEDICAL RESEARCH COUNCIL, GREAT BRITAIN free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GUEDAT, PHILIPPE;BERTOLOTTI, ANNE;SIGNING DATES FROM 20150731 TO 20150818;REEL/FRAME:037866/0274 Owner name: INFLECTIS BIOSCIENCE, FRANCE |
Feb 18, 2016 | P | Published | |
Jan 10, 2014 | F | Filing | |
Jan 10, 2013 | PD | Priority Date |

Matter Detail

Renewals Detail
