US3832234A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of cleaning vehicles with a thickened acid composition
Assignee: Diversey Wyandotte Corp
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Filing: 1973-09-20
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Granted: 1974-08-27
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Expires: 1993-09-20
Abstract
Abstract A METHOD FOR REMOVING SILICONS AND/OR OILY SOLIDS FROM VEHICLES SUCH AS RAILROAD ROLLING STOCK BY APPLYING A THICKENED ACID COMPOSITION CONSISTING ESSENTIALLY OF AN AQUEOUS HUDROCHLORIC ACID, AN ORGANIC ACID, A NONIONIC SURFACTANT, AN ANIONIC SURFACTANT, AND WATER; ALLOWING THE COMPOSITION TO REMAIN IN CONTACT WITH THE VEHICLE FOR A PERIOD OF TIME; AND RINSING TWICE WITH WATER.
Inventors
- 👤 J Otrhalek
- 👤 R Gansser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:44
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/02; C11D3/04; C11D3/042; C11D1/00; C11D1/66; C11D1/83; C11D3/16; C11D3/20; C11D3/2075
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-26 | 1978-02-25 | 1978-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-26 | 1982-02-25 | 1982-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-26 | 1986-02-25 | 1986-08-27 | $7700.00 | Window Closed / Lapsed |