Patent US2964429A successfully refreshed from Google Patents.
US2964429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine cleaning procedure
Assignee: Turco Products Inc
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Filing: 1957-04-15
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Granted: 1960-12-13
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Expires: 1977-04-15
Abstract
No abstract record available.
Inventors
- 👤 Bland Marshall Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:45
CPC Classifications
F; F02; F02B; F02B77/00; F02B77/04; C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A PROCESS FOR REMOVING LEADED AND CARBONACEOUS DEPOSITS ON AN ENGINE PART, WHICH COMPRISES TREATING SAID PART IN A FIRST BATH OF CHLORINATED HYDROCARBON SOLVENT, SAID SOLVENT BEING A POLYCHLORINATED HYDROCARBON CONTAINING FROM 2 TO 6 CARBON ATOMS AND FROM 2 TO 4 CHLORINE ATOMS, THERE BEING AT LEAST TWO CHLORINATED CARBON ATOMS AND WHEN SAID HYDROCARBON IS A SATURATED ALIPHATIC COMPOUND CONTAINING ONLY TWO CARBON ATOMS THERE ARE AT LEAST 3 CHLORINE ATOMS LINKED TO SAID 2 CARBON ATOMS, SAID POLYCHLORINATED HYDROCARBON BEING FREE OF GROUPS COMPRISING 3 ADJACENT CHLORINATED CARBON ATOMS, TREATING SAID PART WITH A SECOND BATH CONTAINING ORTHODICHLOROBENZENE AND AN ALKALI METAL CHROMATE, AND
Claim 2
Dependent Claim
108 words
A PROCESS FOR REMOVING LEADED AND CARBONACEOUS DEPOSITS ON AN ENGINE PART, WHICH COMPRISES TREATING SAID PART IN A FIRST BATH OF CHLORINATED HYDROCARBON SOLVENT, SAID SOLVENT BEING A POLYCHLORINATED HYDROCARBON CONTAINING FROM 2 TO 6 CARBON ATOMS AND FROM 2 TO 4 CHLORINE ATOMS, THERE BEING AT LEAST TWO CHLORINATED CARBON ATOMS AND WHEN SAID HYDROCARBON IS A SATURATED ALIPHATIC COMPOUND CONTAINING ONLY TWO CARBON ATOMS THERE ARE AT LEAST 3 CHLORINE ATOMS LINKED TO SAID 2 CARBON ATOMS, SAID POLYCHLORINATED HYDROCARBON BEING FREE OF GROUPS COMPRISING 3 ADJACENT CHLORINATED CARBON ATOMS, TREATING SAID PART WITH A SECOND BATH CONTAINING ORTHODICHLOROBENZENE AND AN ALKALI METAL CHROMATE, AND
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) | 1963-12-13 | 1964-06-13 | 1964-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-13 | 1968-06-13 | 1968-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-13 | 1972-06-13 | 1972-12-13 | $7700.00 | Window Closed / Lapsed |