Patent US4220549A successfully refreshed from Google Patents.
US4220549A
Expired / Lapsed
US
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Method for removing reflective decal
Assignee: Individual
•
Filing: 1978-05-04
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Granted: 1980-09-02
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Expires: 1998-05-04
Abstract
Abstract A method for removing a reflective decal from a vehicle's body surface, especially a baked enamel surface as would be found on a truck or an automobile. The method includes the steps of contacting the decal, for a period of time sufficient to loosen the decal from the surface, with a composition consisting essentially of methylene chloride, a lower alkyl alcohol, a lower aliphatic symmetric or unsymmetric ketone, methyl cellulose and polyethylene glycol, and separating the loosened decal from the surface with a high pressure stream of liquid.
Inventors
- 👤 Ronnie J. Moore
- 👤 Walter H. Burrows
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:04
CPC Classifications
C; C11; C11D; C11D7/00; C11D7/22; C11D7/26; C11D7/261; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D3/225; C11D3/37; C11D3/3703; C11D3/3707; C11D7/50; C11D7/5004; C11D7/5018; C11D7/264; C11D7/268; C11D7/28
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
59 words
A method of removing acrylic and polyester reflective decals from a surface comprising the steps of: contacting said decal, for a period of time sufficient to loosen said decal from said surface, with a composition consisting essentially of approximately 30%--70% by weight methylene chloride and approximately 10%--40% by weight methyl alcohol; and separating said loosened decal from said surface.
Claim 2
Independent Claim
59 words
A method of removing acrylic and polyester reflective decals from a surface comprising the steps of: contacting said decal, for a period of time sufficient to loosen said decal from said surface, with a composition consisting essentially of approximately 30%--70% by weight methylene chloride and approximately 10%--40% by weight methyl alcohol; and separating said loosened decal from said surface.
Claim 3
Dependent Claim
33 words
The method of claim 1 wherein the composition consists essentially of: ______________________________________
(% by weight)
______________________________________
methylene chloride 30-70%
methyl alcohol 10-40%
methyl ethyl ketone 3-10%
polyethylene glycol 5-15%
methyl cellulose 1-4%
______________________________________
Claim 4
Dependent Claim
15 words
The method of claim 1, wherein said percentage by weight of methylene chloride is 59%.
Claim 5
Dependent Claim
15 words
The method of claim 1, wherein said percentage by weight of methyl alcohol is 26%.
Claim 6
Dependent Claim
30 words
The method of claim 1, wherein said step of separating said loosened decal comprises directing a flow of water under pressure toward said surface to separate said loosened decal therefrom.
Claim 7
Dependent Claim
30 words
The method of claim 1, wherein said step of separating said loosened decal comprises directing a flow of steam under pressure toward said surface to separate said loosened decal therefrom.
Claim 8
Dependent Claim
20 words
The method of claim 1 further comprising the step of drying said surface and decal before contacting with said composition.
Claim 9
Independent Claim
68 words
A method of removing acrylic and polyester reflective decals from a surface comprising the steps of: contacting said decals, for a period of time sufficient to loosen said decal from said surface, with a composition consisting essentially of: ______________________________________
(% by weight)
______________________________________
methylene chloride 59%
methyl alcohol 26%
methyl ethyl ketone 4%
polyethylene glycol 9%
methyl cellulose 2%
______________________________________ and; separating said loosened decal from said surface.
Claim 10
Independent Claim
68 words
A method of removing acrylic and polyester reflective decals from a surface comprising the steps of: contacting said decals, for a period of time sufficient to loosen said decal from said surface, with a composition consisting essentially of: ______________________________________
(% by weight)
______________________________________
methylene chloride 59%
methyl alcohol 26%
methyl ethyl ketone 4%
polyethylene glycol 9%
methyl cellulose 2%
______________________________________ and; separating said loosened decal from said surface.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |