Patent US3543343A successfully refreshed from Google Patents.
US3543343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube extruder
Assignee: Minigrip Inc
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Filing: 1967-05-03
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Granted: 1970-12-01
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Expires: 1987-05-03
Abstract
No abstract record available.
Inventors
- 👤 Karel J Staller
- 👤 Steven Ausnit
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/40; B29C66/47; B29C66/474; B29C48/00; B29C48/03; B29C48/09; B29C48/10; B29C48/25; B29C48/30; B29C48/32; B29C48/36; B29C48/50; B29C48/695; B29C48/70; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C66/004; B29C66/01; B29C66/02; B29C66/024; B29C66/0242; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/50; B29C66/61; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81431; B29C66/816; B29C66/8161; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/83413; B29C48/001; B29C48/0018; B29C48/0019; B29C48/12; B29C65/305; B29C66/70; B29C66/71; B29C66/81411; B29C66/81421; B29C66/81423; B29L; B29L2023/00; B29L2023/003; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/74; B31B70/81; B31B70/813; B31B70/8131; B31B70/8132
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2844846A
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US3195184A
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US2952874A
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US3058493A
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US3355768A
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US3303251A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |