Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Individual
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Individual
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Priority claimed from US05/820,239external-prioritypatent/US4073143A/en
Application filed by IndividualfiledCriticalIndividual
Application grantedgrantedCritical
Publication of CA1074580ApublicationCriticalpatent/CA1074580A/fr
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
Y02A20/00—Water conservation; Efficient water supply; Efficient water use
Y02A20/20—Controlling water pollution; Waste water treatment
Y02A20/204—Keeping clear the surface of open water from oil spills
Landscapes
Laying Of Electric Cables Or Lines Outside
(AREA)
CA291,347A1977-07-291977-11-21Ecran contre les matieres polluantes flottantes
ExpiredCA1074580A
(fr)