Patent US2943352A successfully refreshed from Google Patents.
US2943352A
Expired / Lapsed
US
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Plastic material extrusion head
Assignee: Individual
•
Filing: 1957-07-03
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Granted: 1960-07-05
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Expires: 1977-07-03
Abstract
No abstract record available.
Inventors
- 👤 Jurian W Van Riper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:51
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/03; B29C48/06; B29C48/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2732587A
Cited
US2732588A
Cited
US699459A
Cited
US2546629A
Cited
US2573440A
Cited
US2560778A
Cited
US2760230A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |