Patent US2840224A successfully refreshed from Google Patents.
US2840224A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveying devices for accelerating and timing articles
Assignee: Baljak Corp
•
Filing: 1957-04-24
•
Granted: 1958-06-24
•
Expires: 1977-04-24
Abstract
No abstract record available.
Inventors
- 👤 Frank M Lefief
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:24
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/26; B65G17/002; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2781123A
Cited
US2805755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-23 | 1961-12-23 | 1962-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-23 | 1965-12-23 | 1966-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-23 | 1969-12-23 | 1970-06-24 | $7700.00 | Window Closed / Lapsed |