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(12) Patent Application: | (11) CA 2344486 |
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(54) English Title: | THIN FILM HEATING ELEMENT |
(54) French Title: | ELEMENT CHAUFFANT A FILM MINCE |
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: | CASSAN MACLEAN |
(74) Associate agent: | |
(45) Issued: | |
(86) PCT Filing Date: | 1999-09-17 |
(87) Open to Public Inspection: | 2000-03-30 |
Examination requested: | 2004-07-16 |
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/AU1999/000791 |
(87) International Publication Number: | AU1999000791 |
(85) National Entry: | 2001-03-14 |
(30) Application Priority Data: | ||||||
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A thin film heating element capable of withstanding power densities of 10-20
watts cm-2 and/or temperatures up to 650~C is disclosed. The preferred form of
the heating element includes a layer of tin oxide doped with relatively large
quantities of cerium and lanthanum deposited on an insulating substrate by
pyrolysis of a solution of monobutyl tin trichloride containing the above rare
earth elements. The solution and subsequent oxide layer further include donor
and acceptor elements such as antimony and zinc to enhance the conductivity of
the heating element.
L'invention concerne un élément chauffant à film mince, pouvant résister à des densités de puissance de 10-20 watts cm?-2¿ et/ou à des températures pouvant atteindre 650 ·C. Dans sa forme préférée, ledit élément chauffant se compose d'une couche d'oxyde d'étain dopée à l'aide de quantités relativement importantes de cérium et de lanthanum, déposée sur un substrat isolant, par pyrolyse d'une solution de trichlorure de monobutylétain contenant les éléments du groupe des terres rares. La solution et la couche d'oxyde subséquente comprennent, par ailleurs, des éléments donneurs et accepteurs tels que l'antimoine et le zinc, ce qui a pour effet d'augmenter la conductivité dudit élément chauffant.
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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Application Not Reinstated by Deadline | 2007-09-17 |
Time Limit for Reversal Expired | 2007-09-17 |
Deemed Abandoned - Failure to Respond to Maintenance Fee Notice | 2006-09-18 |
Inactive: IPC from MCD | 2006-03-12 |
Amendment Received - Voluntary Amendment | 2005-09-28 |
Letter Sent | 2004-08-31 |
Letter Sent | 2004-08-31 |
Letter Sent | 2004-07-28 |
All Requirements for Examination Determined Compliant | 2004-07-16 |
Request for Examination Requirements Determined Compliant | 2004-07-16 |
Inactive: Correspondence - Transfer | 2004-07-16 |
Request for Examination Received | 2004-07-16 |
Inactive: Office letter | 2004-06-09 |
Inactive: Single transfer | 2004-04-26 |
Letter Sent | 2001-10-23 |
Letter Sent | 2001-10-23 |
Revocation of Agent Request | 2001-09-17 |
Appointment of Agent Request | 2001-09-17 |
Inactive: Single transfer | 2001-09-05 |
Inactive: Cover page published | 2001-06-07 |
Inactive: First IPC assigned | 2001-06-03 |
Inactive: Courtesy letter - Evidence | 2001-05-29 |
Inactive: Notice - National entry - No RFE | 2001-05-24 |
Inactive: Applicant deleted | 2001-05-24 |
Application Received - PCT | 2001-05-18 |
Application Published (Open to Public Inspection) | 2000-03-30 |
Abandonment Date | Reason | Reinstatement Date |
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2006-09-18 |
The last payment was received on 2005-05-30
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
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web page to see all current fee amounts.
Fee Type | Anniversary Year | Due Date | Paid Date |
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Basic national fee - standard | 2001-03-14 | ||
Registration of a document | 2001-09-05 | ||
MF (application, 2nd anniv.) - standard | 02 | 2001-09-17 | 2001-09-17 |
MF (application, 3rd anniv.) - standard | 03 | 2002-09-17 | 2002-08-14 |
MF (application, 4th anniv.) - standard | 04 | 2003-09-17 | 2003-05-23 |
Registration of a document | 2004-04-26 | ||
MF (application, 5th anniv.) - standard | 05 | 2004-09-17 | 2004-07-09 |
Request for examination - standard | 2004-07-16 | ||
MF (application, 6th anniv.) - standard | 06 | 2005-09-19 | 2005-05-30 |
Note: Records showing the ownership history in alphabetical order.
Current Owners on Record |
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GRIMWOOD MANAGEMENT PTY LTD |
Past Owners on Record |
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DAVID M. GEHRIG |
KEITH MARIO TORPY |