Patent US2517895A successfully refreshed from Google Patents.
US2517895A
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Stabilized chlorohydrocarbon cleaning composition
Assignee: EIDP Inc
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Filing: 1946-05-13
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Granted: 1950-08-08
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Expires: 1966-05-13
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Larchar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:33
CPC Classifications
C; C23; C23G; C23G5/00; C23G5/02; C23G5/028; C23G5/02854; C23G5/02861; C23G5/02874; C07; C07C; C07C17/00; C07C17/38; C07C17/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
A CLEANING COMPOSITION STABLIZED AGAINST METAL-INDUCED DECOMPOSITION CONSISTING ESSENTIALLY OF A VOLATILE ALIPHATIC CHLOROHYDROCARBON SOLVENT BOILING BELOW ABOUT 150*C. AND FROM .02% TO 1%, BASED ON THE WEIGHT OF SAID VOLATILE ALIPHATIC CHLOROHYDROCARBON SOLVENT OF A SATURATED ALIPHATIC 1,3-DIKETONE BOILING BELOW 175*C. AND SELECTED FROM THE GROUP CONSISTING OF ACETYLACETONE, PROPIONYLACETONE, BUTYRYLACETONE, ISOBUTYRYLACETONE AND 2,2-DIMETHYL ACETYLACETONE.
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) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |