Patent US1347481A successfully refreshed from Google Patents.
US1347481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of making castings
Assignee: ALUMINUM CASTINGS Co
•
Filing: 1917-09-24
•
Granted: 1920-07-20
•
Expires: 1937-09-24
Abstract
No abstract record available.
Inventors
- 👤 Jeffries Zay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:59
CPC Classifications
B; B22; B22D; B22D21/00; B22D21/002; B22D21/007
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) | 1923-07-20 | 1924-01-19 | 1924-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-07-20 | 1928-01-19 | 1928-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-07-20 | 1932-01-19 | 1932-07-20 | $7700.00 | Window Closed / Lapsed |