Patent JPS5876843A successfully refreshed from Google Patents.
Patent US4736817B1 successfully refreshed from Google Patents.
US4736817B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4736817B1 - - Google Patents
Assignee: AP Parts Manufacturing Co
•
Filing: 1987-06-08
•
Granted: 1989-04-25
•
Expires: 2007-06-08
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:11
CPC Classifications
F; F01; F01N; F01N13/00; F01N13/18; F01N13/1872; F01N13/1877; F01N1/00; F01N1/02; F01N1/04; F01N13/1888; F01N2260/00; F01N2260/18; F01N2470/00; F01N2470/02; F01N2470/06; F01N2490/00; F01N2490/15; F01N2490/155
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1992-04-24 | 1992-10-24 | 1993-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-24 | 1996-10-24 | 1997-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-24 | 2000-10-24 | 2001-04-25 | $7700.00 | Window Closed / Lapsed |