US4354913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molecule selective enzyme electrode
Assignee: RADELKIS ELEKTROKEMIAI MUSZERGYARTO SZOVETKEZET
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Filing: 1980-12-19
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Granted: 1982-10-19
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Expires: 2000-12-19
Abstract
Abstract A molecule selective sensor has an enzymatically active membrane which is prepared by reacting an enzyme with glutaric aldehyde on the surface of a protein membrane found in nature. Exemplary is the reaction of glucoseoxidase with glutaric aldehyde on the surface of hog intestine membrane.
Inventors
- 👤 Erno Pungor
- 👤 Jeno Havas
- 👤 Geza Nagy
- 👤 Emma Porjesz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/001; C12Q1/002; G; G01; G01N; G01N27/00; G01N27/26; G01N27/28; G01N27/30; G01N27/327; G01N27/3271; G01N35/00; G01N2035/00178; G01N2035/00306; G01N2035/00316; Y; Y10; Y10S; Y10S435/00; Y10S435/817
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
51 words
A hollow molecule-selective sensor having a sensing electrode, a reference electrode and a permeable, enzymatically active membrane comprising a self-supporting, 10-15 micron thick protein membrane found in nature which closes the bottom of the sensor, said membrane containing on its surface the reaction product solely of an enzyme and glutaric aldehyde.
Claim 2
Dependent Claim
51 words
A hollow molecule-selective sensor having a sensing electrode, a reference electrode and a permeable, enzymatically active membrane comprising a self-supporting, 10-15 micron thick protein membrane found in nature which closes the bottom of the sensor, said membrane containing on its surface the reaction product solely of an enzyme and glutaric aldehyde.
Claim 3
Dependent Claim
41 words
A sensor as in claim 6, wherein the said protein membrane is selected from the group consisting of hog intestine membrane, ewe intestine membrane, air bladder of fish, epidermal section of a mammal, epidermal section of a reptile and corneal section.
References Cited (Backward Citations)
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US4066512A
Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-10-18 | 1986-04-19 | 1986-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-18 | 1990-04-19 | 1990-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-18 | 1994-04-19 | 1994-10-19 | $7700.00 | Window Closed / Lapsed |