US2901383A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for cleaning objects
Assignee: Wacker Chemie AG
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Filing: 1956-10-01
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Granted: 1959-08-25
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Expires: 1976-10-01
Abstract
No abstract record available.
Inventors
- 👤 Lebsanft Kurt
- 👤 Schmidt Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:49
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/37; C11D3/3746; C23; C23G; C23G5/00; C23G5/02; C11D2111/00; C11D2111/10; C11D2111/14; C11D2111/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
37 words
PROCESS FOR CLEANING OBJECTS WHICH COMPRISES TREATING THEM WITH A CHLORINATED ALIPHATIC HYDROCARBON CONTAINING FINELY DIVIDED PARTICLES OF POLYVINYL CHLORIDE, AND SUBSENQUENTLY RINSING THE CLEANED OBJECTS IN A CHLORINATED ALIPHATIC HYDROCARBON TO REMOVE THE POLYVINYL CHLORIDE PARTICLES.
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) | 1962-08-24 | 1963-02-23 | 1963-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-24 | 1967-02-23 | 1967-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-24 | 1971-02-23 | 1971-08-25 | $7700.00 | Window Closed / Lapsed |