US2601389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Centrifugal casting machine
Assignee: A R D Corp
•
Filing: 1947-05-24
•
Granted: 1952-06-24
•
Expires: 1967-05-24
Abstract
No abstract record available.
Inventors
- 👤 John D Guelph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:45
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D11/00; B22D11/10; B22D13/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US18924A
Cited
US1428048A
Cited
US1376090A
Cited
US1635144A
Cited
US1772944A
Cited
US1964647A
Cited
US2000155A
Cited
US2010210A
Cited
US2101684A
Cited
US2055225A
Cited
US2255695A
Cited
US2290215A
Cited
US2361906A
Cited
US2392299A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-24 | 1955-12-24 | 1956-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-24 | 1959-12-24 | 1960-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-24 | 1963-12-24 | 1964-06-24 | $7700.00 | Window Closed / Lapsed |