US3349154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Decreased block in polymer films
Assignee: Dow Chemical Co
•
Filing: 1964-05-27
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Granted: 1967-10-24
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Expires: 1984-05-27
Abstract
No abstract record available.
Inventors
- 👤 Gaylon L Dighton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:21
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/001; B29C48/0018; B29C48/0019; B29C48/09; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2476140A
Cited
US2634459A
Cited
US2916764A
Cited
US3022543A
Cited
FR1274521A
Cited
FR1355708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-23 | 1971-04-24 | 1971-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-23 | 1975-04-24 | 1975-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-23 | 1979-04-24 | 1979-10-24 | $7700.00 | Window Closed / Lapsed |