US3530359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable arc welding power supply system
Assignee: Miller Electric Manufacturing Co
•
Filing: 1968-09-20
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Granted: 1970-09-22
•
Expires: 1988-09-20
Abstract
No abstract record available.
Inventors
- 👤 Franklin James Grist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:13
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/10; B23K9/1006; B23K9/1043; B23K9/1056
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA567822A
Cited
US2707267A
Cited
GB784787A
Cited
US3371242A
Cited
FR1420560A
Cited
US3356928A
Cited
US3346799A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |