Patent EP0048419A1 successfully refreshed from Google Patents.
Patent US4930544B1 successfully refreshed from Google Patents.
US4930544B1
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Double-containment thermoplastic pipe assembly
Assignee: USTrust Corp
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Filing: 1988-10-20
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Granted: 1997-12-23
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Expires: 2008-10-20
Abstract
No abstract record available.
Inventors
- 👤 Christopher G Ziu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:02
CPC Classifications
F; F16; F16L; F16L9/00; F16L9/18; F16L7/00; F17; F17D; F17D5/00; F17D5/02; F17D5/04; B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/114; B29C66/1142; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29L; B29L2031/00; B29L2031/60; B29L2031/601; B29L2031/602; B29L2031/603; B29L2031/605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-12-22 | 2001-06-23 | 2001-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-12-22 | 2005-06-23 | 2005-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-12-22 | 2009-06-23 | 2009-12-23 | $7700.00 | Window Closed / Lapsed |