US2704733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removing deposits from
Assignee: —
•
Filing: —
•
Granted: 1955-03-22
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Expires: 1972-03-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:37
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/18; F; F02; F02B; F02B77/00; F02B77/04; C10; C10L; C10L10/00; C10L10/06; C11D1/00; C11D1/38; C11D1/62; C11D3/38; C11D3/382; C11D2111/00; C11D2111/10; C11D2111/14; C11D2111/16; C11D2111/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
THE PROCESS OF REMOVING DEPOSITS FROM COMBUSTION CHAMBERS OF INTERNAL COMBUSTION ENGINES WHICH COMPRISES HEATING THE COATED PARTS TO A TEMPERATURE ABOVE 150*F., APPLYING TO THE DEPOSITS A SOLUTION CONSISTING OF APPROXIMATELY 33 1/3% BY VOLUME OF XYLENE, 33 1/3% BY VOLUME OF HIGH-FLASH AROMATIC NAPHTHA BOILING BETWEEN 250*F. AND 400*F., AND 33 1/3% BY VOLUME OF DIMETHYL FORMAMIDE, AND REMOVING THE LOOSENED DEPOSITS.
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) | 1958-03-21 | 1958-09-20 | 1959-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-21 | 1962-09-20 | 1963-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-21 | 1966-09-20 | 1967-03-22 | $7700.00 | Window Closed / Lapsed |