US3728102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-piping composition for the production of metal ingots and castings
Assignee: Foseco International Ltd
•
Filing: 1971-03-01
•
Granted: 1973-04-17
•
Expires: 1991-03-01
Abstract
Abstract ANTI-PIPING COMPOSITIONS COMPRISING ALUMINUM AND OXIDISING AGENT ARE IMPROVED BY THE ADDITION OF A FLAME GENERATING MATERIAL SUCH AS PAPER PULP, SAWDUST, WOOD FLOUR OR COB FLOUR.
Inventors
- 👤 W Buckingham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:30
CPC Classifications
B; B22; B22D; B22D27/00; B22D27/04; B22D27/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-16 | 1976-10-16 | 1977-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-16 | 1980-10-16 | 1981-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-16 | 1984-10-16 | 1985-04-17 | $7700.00 | Window Closed / Lapsed |