Patent US2627148A successfully refreshed from Google Patents.
US2627148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cleaneng spark plugs
Assignee: —
•
Filing: —
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Granted: 1953-02-03
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Expires: 1970-02-03
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:07
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/66; C11D1/72; B; B24; B24B; B24B1/00; B24C; B24C11/00; C11D3/00; C11D3/02; C11D3/12; C11D3/14; C11D3/16; C11D3/18; C11D7/00; C11D7/22; C11D7/26; C11D7/263; C11D2111/00; C11D2111/10; C11D2111/14; C11D2111/20
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
IN A PROCESS FOR CLEANING SPARK PLUGS, THE STEP OF APPLYING A CLEANING COMPOSITION CONSISTING OF A MIXTURE BY WEIGHT OF FROM .25 TO 2.0% BENTONITE, FROM 2.8 TO 23% WATER, FROM 40 TO 65% POWDERED FELDSPAR ABRASIVE AND THE BALANCE DIETHYLENE GLYCOL MONOBUTYL ETHER, BETEEEN A TOOL AND THE SPARK PLUG AND MOVING SAID TOOL AND SPARK PLUG WITH RESPECT TO EACH OTHER TO CLEAN SAID SPARK PLUG.
References Cited (Backward Citations)
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US2006162A
Cited
US2356792A
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US2376945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |