Patent US4976008B1 successfully refreshed from Google Patents.
US4976008B1
Expired / Lapsed
US
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Multi-piece bearing assembly for a hinge structure
Assignee: ROTON BARRIER Inc
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Filing: 1989-11-06
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Granted: 1996-11-26
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Expires: 2009-11-06
Abstract
No abstract record available.
Inventors
- 👤 Austin R Baer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:05
CPC Classifications
E; E05; E05D; E05D3/00; E05D3/06; E05D3/12; E05D3/122; Y; Y10; Y10S; Y10S16/00; Y10S16/27
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) | 1999-11-26 | 2000-05-27 | 2000-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-11-26 | 2004-05-27 | 2004-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-11-26 | 2008-05-27 | 2008-11-26 | $7700.00 | Window Closed / Lapsed |