US2780609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticized vinyl chloride polymer
Assignee: Wyeth Holdings LLC
•
Filing: 1955-02-23
•
Granted: 1957-02-05
•
Expires: 1975-02-23
Abstract
No abstract record available.
Inventors
- 👤 John C Petropoulos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:08
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOSITION OF MATTER COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE AND POLYVINYL CHLORIDE AND A DIHOMOALKYL ESTER OF AN ACID HAVING THE FORMULA
Claim 2
Dependent Claim
34 words
A COMPOSITION OF MATTER COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF A COPOLYMER OF VINYL CHLORIDE AND VINYL ACETATE AND POLYVINYL CHLORIDE AND A DIHOMOALKYL ESTER OF AN ACID HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-05 | 1960-08-06 | 1961-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-05 | 1964-08-06 | 1965-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-05 | 1968-08-06 | 1969-02-05 | $7700.00 | Window Closed / Lapsed |