US2699403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means and methods for cleaning and polishing automobiles
Assignee: Individual
•
Filing: 1952-05-24
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Granted: 1955-01-11
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Expires: 1972-05-24
Abstract
No abstract record available.
Inventors
- 👤 Emmett J Courts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:43
CPC Classifications
B; B60; B60S; B60S3/00; B60S3/04; B24; B24C; B24C1/00; B24C1/003; F; F25; F25C; F25C5/00; F25C5/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
98 words
A METHOD OF CLEANING A SURFACE WHICH COMPRISES FORMING A SUPPLY OF SMALL ICE PARTICLES, MIXING SAID ICE PARTICLES WITH A STREAM OF AIR, DISCHARGING SAID MIXED STREAM OF AIR AND ICE THROUGH A NOZZLE AGAINST AN AREA OF THE SURFACE, SAID PARTICLES OF ICE BEING AT VIRTUALLY THE TRANSITION ZONE TEMPERATURE FROM A SOLID PHASE TO A LIQUID PHASE, SAID SURFACE BEING AT A TEMPERATURE HIGHER THAN THE MELTING POINT OF THE ICE PARTICLES WHEREBY SAID ICE PARTICLES AFFORD A VIRTUALLY SLUSHY MASS UPON CONTACT WITH THE SURFACE TO BE CLEANED FOR SCRUBBING AND WIPING SAID AREA.
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) | 1958-01-10 | 1958-07-12 | 1959-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-01-10 | 1962-07-12 | 1963-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-01-10 | 1966-07-12 | 1967-01-11 | $7700.00 | Window Closed / Lapsed |