US3352197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for determining the amount of particulate contaminants in a liquid by employing series filters
Assignee: California Texas Oil Corp
•
Filing: 1963-05-17
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Granted: 1967-11-14
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Expires: 1983-05-17
Abstract
No abstract record available.
Inventors
- 👤 Porges George Wolfgang
- 👤 Staves William Albert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:54
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/29; G01N21/293; G01N15/00; G01N15/06; G01N15/0606; G01N15/0618
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
A METHO FOR EVALUATION OF THE AMOUNT AND CHARACTERISTICS OF PARTICULATE CONTAMINANTS IN A LIQUID STREAM CONSISTING OF THE FOLLOWING STEPS IN THE ORDER NAMED: (A) WITHDRAWING A PROPORTIONAL SAMPLE OF THE LIQUID STREAM; (B) PASSING SAID SAMPLE THROUGH FIRST AND SECOND FILTERS IN SERIES SO AS TO DEPOSIT PARTICULATE CONTAMINANTS ON THE FIRST FILTER AND IMPREGNATE THE SECOND FILTER WITH THE THUS FILTERED SAMPLE THEREBY RENDERING SAID SECOND FILTER A STANDARD FOR COMPARISON WITH THE FIRST FILTER; AND
Claim 2
Dependent Claim
79 words
A METHO FOR EVALUATION OF THE AMOUNT AND CHARACTERISTICS OF PARTICULATE CONTAMINANTS IN A LIQUID STREAM CONSISTING OF THE FOLLOWING STEPS IN THE ORDER NAMED: (A) WITHDRAWING A PROPORTIONAL SAMPLE OF THE LIQUID STREAM; (B) PASSING SAID SAMPLE THROUGH FIRST AND SECOND FILTERS IN SERIES SO AS TO DEPOSIT PARTICULATE CONTAMINANTS ON THE FIRST FILTER AND IMPREGNATE THE SECOND FILTER WITH THE THUS FILTERED SAMPLE THEREBY RENDERING SAID SECOND FILTER A STANDARD FOR COMPARISON WITH THE FIRST FILTER; AND
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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) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |