Patent Assignment Assignor Details
NOTE:Results display only for issued patents and published applications.
For pending or abandoned applications please consult USPTO staff.
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Assignor Name :
SPEAR, DEAN M.
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Total Assignments:
6
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Assignment:
1
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| Reel/Frame: | 004421/0352 | |
| Pages: | 1 |
| | Recorded: | 06/24/1985 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06499857
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Correspondence name and address
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JOHN F. SIEBERTH
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PATENT & TRADEMARK DIV., ETHYL CORP.
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451 FLORIDA BLVD.
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BATON ROUGE, LA 70801
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Assignment:
2
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| Reel/Frame: | 004428/0049 | |
| Pages: | 1 |
| | Recorded: | 07/15/1985 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06534359
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Correspondence name and address
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JOHN F. SIEBERTH
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ETHYL CORPORATION .
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451 FLORIDA BLVD.
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BATON ROUGE, LA 70801
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Assignment:
3
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| Reel/Frame: | 004508/0031 | |
| Pages: | 1 |
| | Recorded: | 02/10/1986 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06690050
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Correspondence name and address
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MR. JOHN F. SIEBERTH
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ETHYL CORPORATION
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451 FLORIDA BOULEVARD
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BATON ROUGE, LA 70801
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Assignment:
4
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| Reel/Frame: | 004543/0376 | |
| Pages: | 1 |
| | Recorded: | 05/08/1986 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06690330
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Correspondence name and address
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JOHN F. SIEBERTH
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PATENT AND TRADEMARK DIV.
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ETHYL CORP., 451 FLORIDA BLVD.
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BATON ROUGE, LA 70801
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Assignment:
5
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| Reel/Frame: | 004610/0009 | |
| Pages: | 1 |
| | Recorded: | 09/30/1986 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06721883
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Correspondence name and address
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JOHN F. SIEBERTH
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PATENT & TRADEMARK DIVISION
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ETHYL CORP.
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451 FLORIDA BLVD.
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BATON ROUGE, LA 70801
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Assignment:
6
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| Reel/Frame: | 004594/0138 | |
| Pages: | 1 |
| | Recorded: | 08/25/1986 | | |
| Conveyance: | ASSIGNMENT OF ASSIGNORS INTEREST. |
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Pat #
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Pub #
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Intl #
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App #
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NONE
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06721896
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Correspondence name and address
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JOHN F. SIEBERTH
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ETHYL CORP., PATENT & TRADEMARK DIV.
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451 FLORIDA BLVD.
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BATON ROUGE, LA 70801
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05/26/2024 10:46 AM
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