Patent US3067000A successfully refreshed from Google Patents.
US3067000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for producing shaped articles from polyvinyl chloride
Assignee: Filmfabrik Wolfen VEB
•
Filing: 1960-11-08
•
Granted: 1962-12-04
•
Expires: 1980-11-08
Abstract
No abstract record available.
Inventors
- 👤 Seidel Felix
- 👤 Singer Walter
- 👤 Springer Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:14
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/06; D01D5/04; D01F; D01F6/00; D01F6/02; D01F6/08; D01F6/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
43 words
A PROCESS FOR PRODUCING POLYVINYL CHLORIDE IN SHAPED FORM WHICH COMPRISES DISSOLVING POLYVINYL CHLORIDE MATERIAL WITH A CHLORINE CONTENT FROM 65-75% BY WEIGHT IN THIONYL CHLORIDE SO AS TO FORM A CLEAR SOLUTION THEREIN AND SUBJECTING THE SOLUTION TO A SHAPING PROCESS, WHERE-
Claim 2
Dependent Claim
43 words
A PROCESS FOR PRODUCING POLYVINYL CHLORIDE IN SHAPED FORM WHICH COMPRISES DISSOLVING POLYVINYL CHLORIDE MATERIAL WITH A CHLORINE CONTENT FROM 65-75% BY WEIGHT IN THIONYL CHLORIDE SO AS TO FORM A CLEAR SOLUTION THEREIN AND SUBJECTING THE SOLUTION TO A SHAPING PROCESS, WHERE-
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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |