Patent US2490193A successfully refreshed from Google Patents.
US2490193A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding
Assignee: Individual
•
Filing: 1947-08-15
•
Granted: 1949-12-06
•
Expires: 1967-08-15
Abstract
No abstract record available.
Inventors
- 👤 Roy E Barr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:32
CPC Classifications
B; B22; B22D; B22D25/00; B22D25/02; B22D25/026; B22C; B22C9/00; B22C9/02; B22C9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320770A
Cited
US1325004A
Cited
US1130974A
Cited
US1659638A
Cited
US1796470A
Cited
US1942981A
Cited
US2416506A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-12-05 | 1953-06-06 | 1953-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-12-05 | 1957-06-06 | 1957-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-12-05 | 1961-06-06 | 1961-12-06 | $7700.00 | Window Closed / Lapsed |