Patent US2659477A successfully refreshed from Google Patents.
US2659477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Endless conveyer system
Assignee: Barr Rubber Products Co
•
Filing: 1950-01-18
•
Granted: 1953-11-17
•
Expires: 1970-01-18
Abstract
No abstract record available.
Inventors
- 👤 George S Lawson
- 👤 James C Lawson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:14
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/06; B65G17/08; B65G17/30; B65G17/32; B65G2201/00; B65G2201/06
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) | 1956-11-16 | 1957-05-18 | 1957-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-16 | 1961-05-18 | 1961-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-16 | 1965-05-18 | 1965-11-17 | $7700.00 | Window Closed / Lapsed |