US2914653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fusion arc timing and positioning device
Assignee: Ernst & Ernst
•
Filing: 1958-01-27
•
Granted: 1959-11-24
•
Expires: 1978-01-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:31
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282; B23K9/0286
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1509507A
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US1550651A
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US1499499A
Cited
US1889319A
Cited
US1818859A
Cited
US1782461A
Cited
US2817745A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |