US3275534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bioelectric method for the detection of anticholinester-ases
Assignee: Individual
•
Filing: 1963-03-19
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Granted: 1966-09-27
•
Expires: 1983-03-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul L Cannon
- 👤 David N Kramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:42
CPC Classifications
C; C12; C12Q; C12Q1/00; C12Q1/34; C12Q1/44; C12Q1/46; C12Q2334/00; Y; Y10; Y10T; Y10T436/00; Y10T436/16; Y10T436/163333
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A METHOD OF QUANTITATIVELY DETECTING THE PRESENCE OF ORGANOPHOSPHROUS COMPOUND WHICH COMPRISES: (A) APPLYING A LOW DIRECT CURRENT ACROSS A NEGATIVE AND A POSITIVE ELECTRODE IMMERSED IN A STIRRED BUFFERED AQUEOUS SOLUTION OF SAID COMPOUND AND A LOWER ALKANOYL THIOCHOLINE ESTER HAVING A REFERENCE ELECTRODE THEREIN, (B) RECORDING THE POTENTIAL BETWEEN SAID POSITIVE ELECTRODE AND SAID REFERENCE ELECTRODE, (C) ADDING CHLORINESTERASE TO SAID SOLUTION, (D) RECORDING THE RATIO OF THE CHANGE IN POTENTIAL BETWEEN SAID POSITIVE ELECTRODE AND SAID REFERENCE ELECTRODE WITH RESPECT TO THE CHANGE IN TIME FROM THE ADDITION OF SAID CHLORINESTERASE, SAID RATIO INVERSELY PROPORTIONAL TO THE CONCENTRATION OF SAID COMPOUND IN SAID BUFFERED SOLUTION.
Claim 2
Independent Claim
108 words
A METHOD OF QUANTITATIVELY DETECTING THE PRESENCE OF ORGANOPHOSPHROUS COMPOUND WHICH COMPRISES: (A) APPLYING A LOW DIRECT CURRENT ACROSS A NEGATIVE AND A POSITIVE ELECTRODE IMMERSED IN A STIRRED BUFFERED AQUEOUS SOLUTION OF SAID COMPOUND AND A LOWER ALKANOYL THIOCHOLINE ESTER HAVING A REFERENCE ELECTRODE THEREIN, (B) RECORDING THE POTENTIAL BETWEEN SAID POSITIVE ELECTRODE AND SAID REFERENCE ELECTRODE, (C) ADDING CHLORINESTERASE TO SAID SOLUTION, (D) RECORDING THE RATIO OF THE CHANGE IN POTENTIAL BETWEEN SAID POSITIVE ELECTRODE AND SAID REFERENCE ELECTRODE WITH RESPECT TO THE CHANGE IN TIME FROM THE ADDITION OF SAID CHLORINESTERASE, SAID RATIO INVERSELY PROPORTIONAL TO THE CONCENTRATION OF SAID COMPOUND IN SAID BUFFERED SOLUTION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |