US3418687A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruding apparatus
Assignee: EIDP Inc
•
Filing: 1966-10-24
•
Granted: 1968-12-31
•
Expires: 1986-10-24
Abstract
No abstract record available.
Inventors
- 👤 Albert Richard James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:36
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/36; B29C48/50; B29C48/695; B29C48/70; B29C48/705; B29C48/03; B29C48/09; B29C48/10; B29C48/30; B29C48/32; B29C48/33; B29C48/34; B29C48/501; B29C48/07; B29C48/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2025666A
Cited
US2174779A
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US2820249A
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US2957201A
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US3090994A
Cited
US3343215A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |