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(12) Patent Application: | (11) CA 2131120 |
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(54) English Title: | PROCEDE ET INSTALLATION DE PRODUCTION D'OXYGENE ET/OU D'AZOTE GAZEUX SOUS PRESSION |
(54) French Title: | PROCESS AND EQUIPMENT FOR PRODUCING COMPRESSED GAZEOUS NITROGEN AND/OR OXYGEN |
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: | NORTON ROSE FULBRIGHT CANADA LLP/S.E.N.C.R.L., S.R.L. |
(74) Associate agent: | |
(45) Issued: | |
(22) Filed Date: | 1994-08-30 |
(41) Open to Public Inspection: | 1995-03-02 |
Examination requested: | 2001-08-29 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | French |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | ||||||
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ABRÉGÉ DESCRIPTIF
Dans ce procédé de production d'oxygène et/ou
d'azote gazeux sous pression par distillation d'air
dans une double colonne, pompage d'au moins un produit
liquide soutiré en cuve de la colonne basse pression,
et vaporisation du produit liquide comprimé par échange
de chaleur avec de l'air porté à une haute pression
d'air, on comprime à la haute pression d'air la
totalité de l'air à distiller, et on détend dans deux
turbines en série, à la pression de la colonne moyenne
pression, la fraction excédentaire de cet air, l'air
étant partiellement réchauffé entre les deux turbines.
Il est ainsi possible de réduire la production de
liquide pour une capacité de production donnée
d'oxygène et/ou d'azote gazeux sous pression, ce sans
augmentation de l'énergie spécifique de chaque
production.
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.
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Description | Date |
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Application Not Reinstated by Deadline | 2003-09-02 |
Time Limit for Reversal Expired | 2003-09-02 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2002-08-30 |
Letter Sent | 2002-05-09 |
Inactive: Status info is complete as of Log entry date | 2001-10-04 |
Inactive: Application prosecuted on TS as of Log entry date | 2001-10-04 |
Letter Sent | 2001-10-04 |
Request for Examination Requirements Determined Compliant | 2001-08-29 |
Amendment Received - Voluntary Amendment | 2001-08-29 |
All Requirements for Examination Determined Compliant | 2001-08-29 |
Application Published (Open to Public Inspection) | 1995-03-02 |
Abandonment Date | Reason | Reinstatement Date |
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2002-08-30 |
The last payment was received on 2001-07-17
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
Patent fees are adjusted on the 1st of January every year. The amounts above are the current amounts if received by December 31 of the current year.
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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MF (application, 3rd anniv.) - standard | 03 | 1997-09-02 | 1997-07-18 |
MF (application, 4th anniv.) - standard | 04 | 1998-08-31 | 1998-07-17 |
MF (application, 5th anniv.) - standard | 05 | 1999-08-30 | 1999-07-16 |
MF (application, 6th anniv.) - standard | 06 | 2000-08-30 | 2000-07-18 |
MF (application, 7th anniv.) - standard | 07 | 2001-08-30 | 2001-07-17 |
Request for examination - standard | 2001-08-29 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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L'AIR LIQUIDE SOCIETE ANONYME A DIRECTOIRE ET CONSEIL DE SURVEILLANCE PO |
Past Owners on Record |
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ALAIN GUILLARD |
NORBERT RIETH |