US3243486A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for improving the optical properties of thermoplastic films
Assignee: Millennium Petrochemicals Inc
•
Filing: 1959-10-06
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Granted: 1966-03-29
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Expires: 1979-10-06
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Pilaro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:25
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/88; B29C48/885; B29C48/03; B29C48/09; B29C48/10; B29C48/911; B29C48/9115; B29C48/912; B29C48/001; B29C48/0018; B29C48/0019; B29K; B29K2995/00; B29K2995/0037; B29K2995/0072; B29K2995/0073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE173082C
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US2047554A
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US2364435A
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US2433937A
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US2583330A
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GB694870A
Cited
US2698463A
Cited
US2953428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |