US2970783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite wearing parts for crushers and the like
Assignee: Nordberg Manufacturing Co
•
Filing: 1958-05-01
•
Granted: 1961-02-07
•
Expires: 1978-05-01
Abstract
No abstract record available.
Inventors
- 👤 David A Cheyette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:05
CPC Classifications
B; B02; B02C; B02C2/00; B02C2/005; B29; B29C; B29C70/00; B29C70/04; B29C70/06; B29C70/10; B29C70/12; Y; Y10; Y10S; Y10S238/00; Y10S238/01; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31518
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) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |