US2662201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control of arc operation
Assignee: Armco Inc
•
Filing: 1950-05-10
•
Granted: 1953-12-08
•
Expires: 1970-05-10
Abstract
No abstract record available.
Inventors
- 👤 Wiley Allen Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:06
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/06; B23K9/073; B23K9/0735
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1392436A
Cited
US2166309A
Cited
US2332950A
Cited
US2390214A
Cited
US2458658A
Cited
US2476911A
Cited
US2504878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |