US3540962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of extruding polyethylene onto an ethylene-hydrolyzed vinyl acetate copolymer
Assignee: Kuraray Co Ltd
•
Filing: 1965-09-22
•
Granted: 1970-11-17
•
Expires: 1985-09-22
Abstract
No abstract record available.
Inventors
- 👤 Haruyoshi Anzawa
- 👤 Teiichiro Chiba
- 👤 Katsuaki Hirano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:26
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/12; C08J5/121; B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31928
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2386347A
Cited
US2909443A
Cited
US3002854A
Cited
US3076720A
Cited
US3114736A
Cited
US3025167A
Cited
US3223761A
Cited
US3190781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |