US3436514A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welder power supply
Assignee: Raytheon Co
•
Filing: 1966-01-21
•
Granted: 1969-04-01
•
Expires: 1986-01-21
Abstract
No abstract record available.
Inventors
- 👤 Gordon E Broomhall
- 👤 Felix L Ferranto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:52
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3205378A
Cited
US3246113A
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US3274475A
Cited
US3290581A
Cited
US3316476A
Cited
US3360632A
Cited
US3331014A
Cited
US3355569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |