US3412030A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of melting snow and ice
Assignee: Mo och Domsjo AB
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Filing: 1965-01-27
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Granted: 1968-11-19
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Expires: 1985-01-27
Abstract
No abstract record available.
Inventors
- 👤 Wahlberg Nils Gosta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:37
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/18; C09K3/185
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
109 words
A METHOD OF ACCELERATING THE MELTING OF LAYERS OF SNOW OR ICE, WHICH COMPRISES CAUSING THE WATER FORMED BY THE NATURAL MELTING OF THE SNOW OR ICE TO PENETRATE THE SNOW OR ICE MORE READILY, BY DISSOLVING THEREIN IN SITU AS THE WATER IS FORMED A WATER-SOLUBLE ORGANIC WETTING AGENT APPLIED TO THE SURFACE OF THE SNOW OR ICE IN AN AMOUNT OF AT LEAST 0.01 GRAM PER SQUARE YARD OF SURFACE AND SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC AND CATIONIC WETTING AGENTS, IN THE ABSENCE OF OTHER MELT-ACCELERATING AGENTS, THE ANIONIC WETTING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL ARYL SULFONATES HAVING THE STRUCTURE:
Claim 2
Independent Claim
109 words
A METHOD OF ACCELERATING THE MELTING OF LAYERS OF SNOW OR ICE, WHICH COMPRISES CAUSING THE WATER FORMED BY THE NATURAL MELTING OF THE SNOW OR ICE TO PENETRATE THE SNOW OR ICE MORE READILY, BY DISSOLVING THEREIN IN SITU AS THE WATER IS FORMED A WATER-SOLUBLE ORGANIC WETTING AGENT APPLIED TO THE SURFACE OF THE SNOW OR ICE IN AN AMOUNT OF AT LEAST 0.01 GRAM PER SQUARE YARD OF SURFACE AND SELECTED FROM THE GROUP CONSISTING OF ANIONIC, NONIONIC AND CATIONIC WETTING AGENTS, IN THE ABSENCE OF OTHER MELT-ACCELERATING AGENTS, THE ANIONIC WETTING AGENT BEING SELECTED FROM THE GROUP CONSISTING OF ALKYL ARYL SULFONATES HAVING THE STRUCTURE:
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) | 1971-11-19 | 1972-05-20 | 1972-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-19 | 1976-05-20 | 1976-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-19 | 1980-05-20 | 1980-11-19 | $7700.00 | Window Closed / Lapsed |