Patent US4787938B2 successfully refreshed from Google Patents.
US4787938B2
Expired / Lapsed
US
⏱️ 0.0 years remaining
Countercurrent drum mixer asphalt plant
Assignee: Standard Havens Products Inc
•
Filing: 1986-06-30
•
Granted: 1999-09-21
•
Expires: 2006-06-30
Abstract
No abstract record available.
Inventors
- 👤 Michael R Hawkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:52
CPC Classifications
E; E01; E01C; E01C19/00; E01C19/02; E01C19/10; E01C19/1059; E01C19/1068; E01C19/1072; C; C08; C08L; C08L95/00; E01C19/1013; E01C19/1027; E01C19/1036; E01C2019/1081; E01C2019/109
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) | 2002-09-20 | 2003-03-22 | 2003-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-09-20 | 2007-03-22 | 2007-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-09-20 | 2011-03-22 | 2011-09-21 | $7700.00 | Window Closed / Lapsed |