US3465070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing thermoplastic film characterized by improved properties
Assignee: Union Carbide Corp
•
Filing: 1966-05-20
•
Granted: 1969-09-02
•
Expires: 1986-05-20
Abstract
No abstract record available.
Inventors
- 👤 Keith L Smith
- 👤 Joseph V Petrone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:03
CPC Classifications
B; B29; B29C; B29C67/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2642625A
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US2790999A
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GB773718A
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US2952878A
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US3083410A
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FR1307642A
Cited
GB973476A
Cited
US3194863A
Cited
US3354023A
Cited
US3345447A
Cited
US3340235A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-01 | 1973-03-03 | 1973-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-01 | 1977-03-03 | 1977-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-01 | 1981-03-03 | 1981-09-02 | $7700.00 | Window Closed / Lapsed |