US3341430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coulometric titration employing on-off cycling
Assignee: Gulf Research and Development Co
•
Filing: 1963-06-28
•
Granted: 1967-09-12
•
Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 Warren E Wickerham
- 👤 Ralph D Wyckoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:02
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/26; G01N27/416; G01N27/42; G01N27/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD OF CONTROLLING THE TITRATING CURRENT IN THE COULOMETRIC TITRATION OF A CONTINUOUSLY FLOWING LIQUID WHICH COMPRISES MEASURING A TITRATION POTENTIAL IN THE LIQUID, TURNING THE TITRATING CURRENT ON WHEN EVER SAID POTENTIAL VARIES ON ONE SIDE OF A PREDETERMINED POTENTIAL, TURNING THE TITRATING CURRENT OFF WHENEVER SAID POTENTIAL VARIES ON THE OTHER SIDE OF A PREDETERMINED POTENTIAL, MEASURING THE LENGTH OF AN ADJACENT TIME INTERVAL DURING WHICH THE TITRATING CURRENT IS OFF, AND ADJUSTING THE MAGNITUDE OF THE TITRATING CURRENT SO THAT THE TIME DURING WHICH THE CURRENT IS ON BEARS A PREDETERMINED RELATION TO THE TIME DURING WHICH THE CURRENT IS OFF.
Claim 2
Independent Claim
105 words
A METHOD OF CONTROLLING THE TITRATING CURRENT IN THE COULOMETRIC TITRATION OF A CONTINUOUSLY FLOWING LIQUID WHICH COMPRISES MEASURING A TITRATION POTENTIAL IN THE LIQUID, TURNING THE TITRATING CURRENT ON WHEN EVER SAID POTENTIAL VARIES ON ONE SIDE OF A PREDETERMINED POTENTIAL, TURNING THE TITRATING CURRENT OFF WHENEVER SAID POTENTIAL VARIES ON THE OTHER SIDE OF A PREDETERMINED POTENTIAL, MEASURING THE LENGTH OF AN ADJACENT TIME INTERVAL DURING WHICH THE TITRATING CURRENT IS OFF, AND ADJUSTING THE MAGNITUDE OF THE TITRATING CURRENT SO THAT THE TIME DURING WHICH THE CURRENT IS ON BEARS A PREDETERMINED RELATION TO THE TIME DURING WHICH THE CURRENT IS OFF.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |