US4238593B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for production of a high molecular weight polyester prepared from a prepolymer polyester having an optional carboxyl content
Assignee: GENVEE Inc
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Filing: 1979-06-12
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Granted: 1994-03-22
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Expires: 1999-06-12
Abstract
No abstract record available.
Inventors
- 👤 Ben Duh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:09
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/78; C08G63/80; C08G63/02; C08G63/12; C08G63/16
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) | 1997-03-21 | 1997-09-20 | 1998-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-03-21 | 2001-09-20 | 2002-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-03-21 | 2005-09-20 | 2006-03-22 | $7700.00 | Window Closed / Lapsed |