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Patent number:
Patent Date:
US Patent: 4,420,677
Heating system
Patentee:
Everett J. Partington (
exact
or
similar
names) - Oconomowoc, WI
USPTO Classifications:
126/101
,
219/493
,
237/59
,
237/8A
,
392/355
,
392/358
,
392/483
Tool Categories:
Assignees:
Everett J. Partington
- Oconomowoc, WI
Manufacturer:
Not known to have been produced
Witnesses:
Unknown
Patent Dates:
Applied:
Oct. 02, 1981
Granted:
Dec. 13, 1983
Patent Pictures:
USPTO
(New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
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