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(12) Patent: | (11) CA 2139275 |
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(54) English Title: | SMOKE EXHAUSTER |
(54) French Title: | EVACUATEUR DE FUMEE |
Status: | Expired and beyond the Period of Reversal |
(51) International Patent Classification (IPC): |
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(72) Inventors : |
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(73) Owners : |
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(71) Applicants : | |
(74) Agent: | OSLER, HOSKIN & HARCOURT LLP |
(74) Associate agent: | |
(45) Issued: | 1997-07-22 |
(22) Filed Date: | 1994-12-29 |
(41) Open to Public Inspection: | 1996-06-30 |
Examination requested: | 1994-12-29 |
Availability of licence: | N/A |
Dedicated to the Public: | N/A |
(25) Language of filing: | English |
Patent Cooperation Treaty (PCT): | No |
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(30) Application Priority Data: | None |
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A smoke exhauster comprises a filtration member of a
rectangular framelike construction. The filtration member is
disposed in the smoke exhauster such that the periphery of the
filtration member urges the inner wall of a stopping portion of
the base board of the smoke exhauster, and that the top and the
bottom of the filtration member are attached respectively to
the bottom of the bottom board of the smoke exhauster and the
top of a main plate portion of the base board of the smoke
exhauster. The filtration member serves to purify the fume so
as to reduce the discharge of the air pollutant into the
atmosphere.
Évacuateur de fumées comprenant un filtre de construction rectangulaire semblable à un cadre. Le filtre est disposé dans l'évacuateur de manière à ce que son pourtour exerce une pression et pousse la paroi intérieure de la portion d'arrêt située sur la plaque de montage de l'évacuateur et de manière à ce que les parties supérieure et inférieure du filtre soient fixées respectivement sur la portion inférieure de la plaque inférieure de l'évacuateur et sur la portion supérieure de la plaque principale située sur la plaque de montage de l'évacuateur. Ce dispositif sert à purifier les émanations en vue de réduire les émissions de polluants atmosphériques.
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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Please note that "Inactive:" events refers to events no longer in use in our new back-office solution.
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Description | Date |
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Inactive: Agents merged | 2013-10-18 |
Time Limit for Reversal Expired | 2004-12-29 |
Letter Sent | 2003-12-29 |
Grant by Issuance | 1997-07-22 |
Notice of Allowance is Issued | 1997-02-18 |
Application Published (Open to Public Inspection) | 1996-06-30 |
All Requirements for Examination Determined Compliant | 1994-12-29 |
Request for Examination Requirements Determined Compliant | 1994-12-29 |
There is no abandonment history.
Fee Type | Anniversary Year | Due Date | Paid Date |
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MF (patent, 3rd anniv.) - small | 1997-12-29 | 1997-11-18 | |
MF (patent, 4th anniv.) - small | 1998-12-29 | 1998-12-11 | |
MF (patent, 5th anniv.) - small | 1999-12-29 | 1999-12-14 | |
MF (patent, 6th anniv.) - small | 2000-12-29 | 2000-12-19 | |
MF (patent, 7th anniv.) - small | 2001-12-31 | 2001-12-13 | |
MF (patent, 8th anniv.) - small | 2002-12-30 | 2002-12-12 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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SUN-SING JANG |
Past Owners on Record |
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None |