Patent US3114728A successfully refreshed from Google Patents.
US3114728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Binary blends of polyvinyl formal and ethylene vinylene carbonate copolymer and processes for making the same
Assignee: Monsanto Chemicals Ltd
•
Filing: 1960-07-21
•
Granted: 1963-12-17
•
Expires: 1980-07-21
Abstract
No abstract record available.
Inventors
- 👤 James A Herbig
- 👤 Ival O Salyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:40
CPC Classifications
C; C08; C08L; C08L29/00; C08L29/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A POLYVINYL FORMAL POLYBLEND COMPOSITION COMPRISING A MAJOR PROPORTION OF POLYVINYL FORMAL AND A MINOR PROPORTION OF AN ETHYLENE/VINYLENE CARBONATE COPOLYMER.
Claim 2
Dependent Claim
21 words
A POLYVINYL FORMAL POLYBLEND COMPOSITION COMPRISING A MAJOR PROPORTION OF POLYVINYL FORMAL AND A MINOR PROPORTION OF AN ETHYLENE/VINYLENE CARBONATE COPOLYMER.
References Cited (Backward Citations)
US2934514A
Cited
US2957847A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |