US2717433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal casting machine
Assignee: Richardson Co
•
Filing: 1949-07-28
•
Granted: 1955-09-13
•
Expires: 1969-07-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Paul J Mcgervey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:46
CPC Classifications
B; B22; B22D; B22D17/00; B22D17/20; B22D17/32; B22D17/02; B22D17/04
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-12 | 1959-03-14 | 1959-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-12 | 1963-03-14 | 1963-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-12 | 1967-03-14 | 1967-09-13 | $7700.00 | Window Closed / Lapsed |