US2944660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perforated conveyor for potato diggers and the like
Assignee: Individual
•
Filing: 1959-03-19
•
Granted: 1960-07-12
•
Expires: 1979-03-19
Abstract
No abstract record available.
Inventors
- 👤 Clair R Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:03
CPC Classifications
B; B65; B65G; B65G15/00; B65G15/30; B65G15/50; B65G15/52; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 0
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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) | 1963-07-12 | 1964-01-11 | 1964-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-12 | 1968-01-11 | 1968-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-12 | 1972-01-11 | 1972-07-12 | $7700.00 | Window Closed / Lapsed |