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(12) Patent Application: | (11) CA 2517455 |
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(54) English Title: | ALL PARAFFINIC, LOW TEMPERATURE HYDRAULIC OILS |
(54) French Title: | HUILES HYDRAULIQUES BASSE TEMPERATURE ENTIEREMENT PARAFFINIQUES |
Status: | Deemed Abandoned and Beyond the Period of Reinstatement - Pending Response to Notice of Disregarded Communication |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : |
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(74) Agent: | BORDEN LADNER GERVAIS LLP |
(74) Associate agent: | |
(45) Issued: | |
(86) PCT Filing Date: | 2004-03-26 |
(87) Open to Public Inspection: | 2004-10-14 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | Yes |
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(86) PCT Filing Number: | PCT/US2004/009893 |
(87) International Publication Number: | WO 2004087851 |
(85) National Entry: | 2005-08-29 |
(30) Application Priority Data: | |||||||||
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A paraffinic hydraulic oil having a shear stability index of from 0 to 20, a
shear loss of less than 7% as measured by ASTM D5621 and a Brookfield
viscosity the same or better than a naphthenic oil of the same viscosity grade
is provided. The hydraulic oil includes 5 wt% to 90 wt% of a first paraffinic
oil having a KV at 100~C of 2 to 6 cSt, 5 wt% to 90 wt% of a second paraffinic
oil having a KV at 100~C of 3 to 14 cSt and 5 wt% to 10 wt% of a
polymethacrylate viscosity index improver.
L'invention concerne une huile hydraulique à indice de stabilité au cisaillement compris entre 0 et 20, module de perte inférieur à 7 % mesuré selon la norme ASTM D5621, et viscosité égale ou supérieure à celle d'une huile naphténique ayant une qualité de viscosité identique. L'huile hydraulique comprend, en poids, entre 5 % et 90 % d'une première huile paraffinique ayant un KV à 100 ·C de 2 à 6 cSt, puis entre 5 % et 90 % d'une seconde huile paraffinique ayant un KV à 100 ·C de 3 à 14 cSt et enfin entre 5 % et 10 % d'un agent d'amélioration d'indice de viscosité au polyméthacrylate.
Note: Claims are shown in the official language in which they were submitted.
Note: Descriptions are shown in the official language in which they were submitted.
Sorry, the representative drawing for patent document number 2517455 was not found.
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Description | Date |
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Application Not Reinstated by Deadline | 2009-03-26 |
Time Limit for Reversal Expired | 2009-03-26 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2008-03-26 |
Inactive: Cover page published | 2005-11-02 |
Inactive: First IPC assigned | 2005-10-31 |
Letter Sent | 2005-10-27 |
Inactive: Notice - National entry - No RFE | 2005-10-27 |
Application Received - PCT | 2005-10-12 |
National Entry Requirements Determined Compliant | 2005-08-29 |
Application Published (Open to Public Inspection) | 2004-10-14 |
Abandonment Date | Reason | Reinstatement Date |
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2008-03-26 |
The last payment was received on 2006-12-21
Note : If the full payment has not been received on or before the date indicated, a further fee may be required which may be one of the following
Please refer to the CIPO Patent Fees web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Basic national fee - standard | 2005-08-29 | ||
Registration of a document | 2005-08-29 | ||
MF (application, 2nd anniv.) - standard | 02 | 2006-03-27 | 2006-01-19 |
MF (application, 3rd anniv.) - standard | 03 | 2007-03-26 | 2006-12-21 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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EXXONMOBIL RESEARCH AND ENGINEERING COMPANY |
Past Owners on Record |
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KYLE D. LAWRENCE |
LISA A. SEMMEL |