US3928654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and formulation for preventing snow and ice accumulation
Assignee: MONGILLO ROBERT F
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Filing: 1974-04-19
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Granted: 1975-12-23
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Expires: 1994-04-19
Abstract
Abstract Ice and snow accumulation on outdoor surfaces is prevented by application thereto of a formulation which consists essentially of 30 to 45 percent by volume of an alkylene glycol, preferably, ethylene or propylene glycol, in water, and about 0.1 percent by volume of an organic dyestuff containing (-SO3H) sulfonic acid groups, to impart color thereto and to the treated surface. Diminution of the coloration by erosion of the formulation due to melting runoff will indicate the need to reapply the formulation.
Inventors
- 👤 Anthony J Bonnanzio
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:34
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
119 words
A METHOD FOR TREATING WALKWAYS, ROADWAYS AND DRIVEWAYS TO PREVENT THE ACCUMULATION OF ICE AND SNOW THEREUPON, SAID METHOD COMPRISING APPLYING TO SAID SURFACE A LIQUID COMPOSITION CONSISTING ESSENTIALLY OF 30 TO 45 PERCENT BY VOLUME OF AT LEAST ONE ALKYLENE GLYCOL HAVING FROM 2 TO 6 CARBON ATOMS IN WATER, AND AN ORGANIC DYE COMPATIBLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF AROMATIC SULFONIC ACIDS, NITRO-SULFONIC ACID, MONO-AZO SULFONIC ACIDS, DIAZOSULFONIC ACIDS, AND ANTHRAQUINONE SULFONIC ACIDS, IN AN AMOUNT SUFFICIENT TO IMPART TO SAID FORMULATION A VISIBLE COLORATION WHEN SAID FORMULATION IS IN CONTACT WITH THE SURFACE AND SUCH THAT SAID COLORATION DISAPPEARS IN A UNIFORM MANNER AND PROPORTIONATELY WITH THE LOSS OF RESISTANCE TO PREVENT SUCH ACCUMULATION.
Claim 2
Independent Claim
119 words
A METHOD FOR TREATING WALKWAYS, ROADWAYS AND DRIVEWAYS TO PREVENT THE ACCUMULATION OF ICE AND SNOW THEREUPON, SAID METHOD COMPRISING APPLYING TO SAID SURFACE A LIQUID COMPOSITION CONSISTING ESSENTIALLY OF 30 TO 45 PERCENT BY VOLUME OF AT LEAST ONE ALKYLENE GLYCOL HAVING FROM 2 TO 6 CARBON ATOMS IN WATER, AND AN ORGANIC DYE COMPATIBLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF AROMATIC SULFONIC ACIDS, NITRO-SULFONIC ACID, MONO-AZO SULFONIC ACIDS, DIAZOSULFONIC ACIDS, AND ANTHRAQUINONE SULFONIC ACIDS, IN AN AMOUNT SUFFICIENT TO IMPART TO SAID FORMULATION A VISIBLE COLORATION WHEN SAID FORMULATION IS IN CONTACT WITH THE SURFACE AND SUCH THAT SAID COLORATION DISAPPEARS IN A UNIFORM MANNER AND PROPORTIONATELY WITH THE LOSS OF RESISTANCE TO PREVENT SUCH ACCUMULATION.
Claim 3
Dependent Claim
22 words
The method of claim 1, wherein the quantity of said dye is about one-tenth of one percent by volume of said composition.
Claim 4
Dependent Claim
42 words
The method of claim 1, wherein the dye is selected from the group consisting of acid yellow 1, bromaminic acid, acid green 1, acid orange 7, acid blue 92, acid red 97, acid blue 78, acid blue 25, and acid green 25.
Claim 5
Dependent Claim
23 words
The method of claim 1, wherein said alkylene glycol is selected from the group consisting of ethylene glycol, propylene glycol and mixtures thereof.
Claim 6
Dependent Claim
33 words
The method of claim 1, wherein said composition is applied to said outdoor surface by pressurized spraying directly upon said surface while said surface is substantially clear of any ice and snow accumulation.
References Cited (Backward Citations)
US1213368A
Cited
US1831521A
Cited
US2258184A
Cited
US3108075A
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US3245912A
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US3696042A
Cited
US3756956A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |