US3677980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foamed polyolefin films
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1970-05-14
•
Granted: 1972-07-18
•
Expires: 1990-05-14
Abstract
Abstract FOAMED FILM CONTAINING A MIXTURE OF TITANIUM DIOXIDE AND COARSELY DIVIDED METALLIC ALUMINUM.
Inventors
- 👤 Anthony Graham Marshall Last
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:20
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/0066; C08K; C08K3/00; C08K3/02; C08K3/08; C08K3/18; C08K3/20; C08K3/22; C08J2323/00; Y; Y10; Y10S; Y10S521/00; Y10S521/91
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |