US3395038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multilayer film comprising polypropylene consisting essentially of stereoblock macromolecules having isotactic chain sections
Assignee: Montedison SpA
•
Filing: 1964-04-24
•
Granted: 1968-07-30
•
Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Lucchetti Luciano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:22
CPC Classifications
B; B32; B32B; B32B27/00; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/046; C08J7/048; C08J7/052; C09; C09J; C09J123/00; C09J123/02; C09J123/10; C09J123/12; C09J123/26; C09J123/28; C08J2423/00; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/2835; Y10T428/2852; Y10T428/2878
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-30 | 1972-01-29 | 1972-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-30 | 1976-01-29 | 1976-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-30 | 1980-01-29 | 1980-07-30 | $7700.00 | Window Closed / Lapsed |