US2858589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ductile iron castings and methods of making same
Assignee: Bean Morris and Co
•
Filing: 1955-09-29
•
Granted: 1958-11-04
•
Expires: 1975-09-29
Abstract
No abstract record available.
Inventors
- 👤 Xarifa L Bean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:06
CPC Classifications
B; B22; B22C; B22C9/00; B22C9/22
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US334821A
Cited
US426072A
Cited
US927495A
Cited
US1417638A
Cited
US1678655A
Cited
US2104906A
Cited
GB700989A
Cited
GB703607A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-03 | 1962-05-05 | 1962-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-03 | 1966-05-05 | 1966-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-03 | 1970-05-05 | 1970-11-04 | $7700.00 | Window Closed / Lapsed |