Patent US1713675A successfully refreshed from Google Patents.
Patent US3559271A successfully refreshed from Google Patents.
Patent US5243181A successfully refreshed from Google Patents.
Patent US658230A successfully refreshed from Google Patents.
Patent US3479754A successfully refreshed from Google Patents.
US3479754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elevator mounting for self-loading elevator scraper
Assignee: Dresser Industries Inc
•
Filing: 1966-06-29
•
Granted: 1969-11-25
•
Expires: 1986-06-29
Abstract
No abstract record available.
Inventors
- 👤 Edward D Duke
- 👤 Ramiz Y Hermiz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:54
CPC Classifications
E; E02; E02F; E02F3/00; E02F3/04; E02F3/64; E02F3/65; E02F3/654; E02F3/655; E02F3/6454; E02F3/6481
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |