US2548376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloration of polyvinyl plastics
Assignee: Geigy Co Ltd
•
Filing: 1947-08-12
•
Granted: 1951-04-10
•
Expires: 1967-08-12
Abstract
No abstract record available.
Inventors
- 👤 Jones Harry
- 👤 Musgrave Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:57
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; C08J2357/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
A POLYVINYL PLASTIC COLOURED THROUGHOUT WITH A WATER-SOLUBLE ORGANIC DYESTUFF WHICH IS SUBSTANTIALLY INSOLUBLE IN ORGANIC SOLVENTS.
References Cited (Backward Citations)
US1966856A
Cited
US2022710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |