Patent US3306424A successfully refreshed from Google Patents.
US3306424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor
Assignee: Robalex Inc
•
Filing: 1964-03-26
•
Granted: 1967-02-28
•
Expires: 1984-03-26
Abstract
No abstract record available.
Inventors
- 👤 Wolfgang B Fahrenbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:18
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/22; B65G47/24; B65G47/244; B65G47/2445
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |