US4866329B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4866329B1 - - Google Patents
Assignee: Whelen Engineering Co Inc
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Filing: 1988-08-31
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Granted: 1991-11-12
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Expires: 2008-08-31
Abstract
No abstract record available.
Inventors
- 👤 Robert A Ferenc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:44
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/2611; B60Q1/50; B60Q1/52; F; F21; F21S; F21S41/00; F21S41/20; F21S41/28; F21V; F21V3/00; F21V3/04
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) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |