US3450529A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal briquette compacting method and machine therefor
Assignee: Michigan Foundry Supply Co
•
Filing: 1968-03-19
•
Granted: 1969-06-17
•
Expires: 1988-03-19
Abstract
No abstract record available.
Inventors
- 👤 Ward D Macdonald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:33
CPC Classifications
B; B22; B22F; B22F8/00; B30; B30B; B30B11/00; B30B11/005; B30B11/006; B30B15/00; B30B15/30; B30B15/302; B30B15/308; B30B9/00; B30B9/32; B30B9/327; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y02W; Y02W30/00; Y02W30/50; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/907; Y10T; Y10T29/00; Y10T29/49; Y10T29/49751; Y10T29/49753; Y10T29/49755; Y10T29/49757
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) | 1972-06-16 | 1972-12-16 | 1973-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-16 | 1976-12-16 | 1977-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-16 | 1980-12-16 | 1981-06-17 | $7700.00 | Window Closed / Lapsed |