US2844568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Indicating and/or control system and method
Assignee: Phillips Petroleum Co
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Filing: 1955-10-10
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Granted: 1958-07-22
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Expires: 1975-10-10
Abstract
No abstract record available.
Inventors
- 👤 Clyde W Mertz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:20
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/56; G01F1/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
THE METHOD OF DETERMINING THE FLOW RATE OF A SYNTHETIC BUTADIENE-STYRENE LATEX RUBBER WHICH COMPRISES FLOWING SAID LATEX BETWEEN A PAIR OF ELECTRODES POSITIONED ALONG A LINE SUBSTANTIALLY PERPENDICULAR TO THE PATH OF LATEX FLOW, INDUCING AN ALTERNATING ELECTROMAGNETIC FIELD IN SAID LATEX AT THE REGION OF SAID ELECTRODES AND GENERALLY PERPENDICULAR TO A LINE CONNECTING SAID ELECTRODES, AND INDICATING THE RESULTING ELECTRICAL POTENTIAL APPEARING ACROSS SAID ELECTRODES.
Claim 2
Independent Claim
62 words
THE METHOD OF STRIPPING UNREACTED MONOMERS FROM A BUTADIENE-STYRENE LATEX WHICH COMPRISES FLASHING SAID LATEX TO REMOVE UNREACTED BUTADIENE, PASSING THE RESULTING LATEX CONTAINING UNREACTED STYRENE BETWEEN A PAIR OF ELECTRODES AND THENCE TO A STRIPPING ZONE, CONTACTING SAID LATEX WITH STEAM IN THE STRIPPING ZONE TO REMOVE SAID UNREACTED STYRENE, PRODUCING AN ALTERNATING ELECTROMAGNETIC FIELD HAVING A COMPONENT PERPENDICULAR TO SAID
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) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |