Patent US2494935A successfully refreshed from Google Patents.
US2494935A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forging
Assignee: —
•
Filing: —
•
Granted: 1950-01-17
•
Expires: 1967-01-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:25
CPC Classifications
B; B21; B21J; B21J5/00; B21J5/02; B21J13/00; B21J13/02; B21J5/06; B21J5/08; B21J5/12; B21K; B21K1/00; B21K1/28; B21K1/30; B21K5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US309507A
Cited
US1101813A
Cited
US1420278A
Cited
US1493211A
Cited
US2197223A
Cited
US2323972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |