US3517095A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion process
Assignee: EIDP Inc
•
Filing: 1966-12-01
•
Granted: 1970-06-23
•
Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 Gordon Beale Dunnington
- 👤 Reuben Thomas Fields
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:37
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/68; B29C48/685; B29C48/688; B29C48/362; B29C48/395; B29C48/505; B29C48/53; B29C48/56; B29C48/58; B29C48/686; B29C48/03; B29C48/52; B29C48/525
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |