US2803333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor system
Assignee: Individual
•
Filing: 1954-06-24
•
Granted: 1957-08-20
•
Expires: 1974-06-24
Abstract
No abstract record available.
Inventors
- 👤 Freeman Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:59
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/34; B65G47/46; B65G47/48; B65G47/485; B65G47/487; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5196
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) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |