Polarographic sensor and method of using same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 17, 1998
Grant Date -
N/A
app pub date -
Jun 3, 1996
filing date -
Jun 3, 1996
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
A polarographic sensor device to determine the partial pressure of a gas in a sample medium is disclosed. The device comprises a) a substantially hydroscopic electrolyte composition joining a pair of spaced apart electrodes, one of the pair of electrodes being a sensing electrode; b) a membrane permeable to gas but impermeable to the electrolyte, the membrane having a front section for separating the electrodes and the electrolyte from the sample medium; and c) a fastener comprising a sleeve having a body portion and a lip, the body portion retaining the fastener and a side section of the membrane, and the lip retaining a portion of the front section of the membrane and holding substantially the entire front section in a spaced apart relationship from the sensing electrode.
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 | |
---|---|---|
BECKMAN INSTRUMENTS INC | 485 POTRERO AVENUE SUNNYVALE CA 94086 |
International Classification(s)

- 1996 Application Filing Year
- G01N Class
- 2869 Applications Filed
- 1348 Patents Issued To-Date
- 46.99 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lin, Dean Y | Chino Hills, CA | 8 | 172 |
# of filed Patents : 8 Total Citations : 172 | |||
Nguyen, Khan V | Westminster, CA | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 | |||
Shu, Frank R | La Habra Heights, CA | 11 | 76 |
# of filed Patents : 11 Total Citations : 76 | |||
Xie, Yougin E | Diamond Bar, CA | 1 | 5 |
# of filed Patents : 1 Total Citations : 5 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 5 Citation Count
- G01N Class
- 2.26 % this patent is cited more than
- 27 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 |
---|---|---|---|
Apr 12, 2010 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 17, 2010 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 17, 2010 |
Mar 17, 2010 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Oct 19, 2009 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Sep 19, 2005 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Aug 29, 2001 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 08, 2000 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Mar 17, 1998 | I | Issuance | |
Sep 12, 1996 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:XIE, YOUQIN;LIN, DEAN Y.;NGUYEN, KHAN V.;AND OTHERS;REEL/FRAME:008160/0233 Owner name: BECKMAN INSTRUMENTS, INC., CALIFORNIA Effective Date: Sep 12, 1996 |
Jun 03, 1996 | F | Filing | |
Jun 03, 1996 | PD | Priority Date |

Matter Detail

Renewals Detail
