Patent US5035282A successfully refreshed from Google Patents.
US5035282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchanger made of aluminum and surface treating method therefor
Assignee: Honda Motor Co Ltd
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Filing: 1989-10-06
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Granted: 1991-07-30
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Expires: 2009-10-06
Abstract
Abstract A heat exchanger made of aluminum and apt to collect water thereon, e.g., an evaporator of an automotive air conditioning system is provided with an anodized surface layer which has numerous pores therein. Fungicide is filled in the pores to eliminate an offensive smell ascribable to mold.
Inventors
- 👤 Hiroichi Kawashita
- 👤 Yasunori Komatsu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:20
CPC Classifications
F; F28; F28D; F28D1/00; F28D1/02; F28D1/04; F28D1/047; F28D1/0477; F28D1/0478; F28F; F28F19/00; F28F19/02; F28F2265/00; F28F2265/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
A heat exchanger having fins and a tube at least one of which is made of aluminum or aluminum alloy, comprising: an anodized surface layer having numerous pores therein and provided on at least a part of surfaces of said fins or said tube which is made of aluminum, said pores have open ends which are partially closed by sealing; and fungicide filled in said pores of said anodized surface layer.
Claim 2
Dependent Claim
71 words
A heat exchanger having fins and a tube at least one of which is made of aluminum or aluminum alloy, comprising: an anodized surface layer having numerous pores therein and provided on at least a part of surfaces of said fins or said tube which is made of aluminum, said pores have open ends which are partially closed by sealing; and fungicide filled in said pores of said anodized surface layer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |