US4889327B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple-strand torsion spring
Assignee: Delphi Technologies Inc
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Filing: 1988-11-21
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Granted: 1994-12-20
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Expires: 2008-11-21
Abstract
No abstract record available.
Inventors
- 👤 Peter G Seyler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
F; F16; F16F; F16F1/00; F16F1/02; F16F1/04; B; B21; B21F; B21F3/00; B21F3/02; B21F3/04; B21F35/00; B21F35/003; F16F1/06
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) | 1997-12-19 | 1998-06-20 | 1998-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-12-19 | 2002-06-20 | 2002-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-12-19 | 2006-06-20 | 2006-12-20 | $7700.00 | Window Closed / Lapsed |