Patent US3451538A successfully refreshed from Google Patents.
US3451538A
Expired / Lapsed
US
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Packaging films with improved properties
Assignee: Monsanto Co
•
Filing: 1967-05-29
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Granted: 1969-06-24
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Expires: 1987-05-29
Abstract
No abstract record available.
Inventors
- 👤 Quirino A Trementozzi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:05
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/18; C08L33/20; B; B29; B29C; B29C49/00; B29C49/0005; B65; B65D; B65D1/00; B65D1/02; B65D1/0207; B65D65/00; B65D65/38; C08L51/00; C08L51/04; Y; Y10; Y10S; Y10S206/00; Y10S206/828
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2531196A
Cited
US2802809A
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US2843572A
Cited
GB851491A
Cited
US3157519A
Cited
US3252933A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |