Patent US4064112B1 successfully refreshed from Google Patents.
US4064112B1
Expired / Lapsed
US
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Process for the continuous production of high molecular weight polyethylene terephalate
Assignee: LL Plant Engineering AG
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Filing: 1976-04-15
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Granted: 1994-09-13
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Expires: 1996-04-15
Abstract
No abstract record available.
Inventors
- 👤 Hans J. Rothe
- 👤 Helmut Heinze
- 👤 Brian D. Whitehead
- 👤 Gunther Priepke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:47
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/80
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) | 1997-09-12 | 1998-03-14 | 1998-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-09-12 | 2002-03-14 | 2002-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-09-12 | 2006-03-14 | 2006-09-13 | $7700.00 | Window Closed / Lapsed |