US1532690A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for making centrifugal castings
Assignee: Johnson Bronze Co
•
Filing: 1922-11-22
•
Granted: 1925-04-07
•
Expires: 1942-11-22
Abstract
No abstract record available.
Inventors
- 👤 Patrick J Flaherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:30
CPC Classifications
B; B22; B22D; B22D13/00; B22D13/10; B22D13/101; B22D13/105; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49647; Y10T29/49668; Y10T29/49677; Y10T29/49705
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) | 1928-04-06 | 1928-10-06 | 1929-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-04-06 | 1932-10-06 | 1933-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-04-06 | 1936-10-06 | 1937-04-07 | $7700.00 | Window Closed / Lapsed |