Patent US3514570A successfully refreshed from Google Patents.
US3514570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding gun components
Assignee: Delaware Capital Formation Inc
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Filing: 1968-12-04
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Granted: 1970-05-26
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Expires: 1988-12-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur A Bernard
- 👤 Richard A Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:28
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/122; B23K9/123; B23K9/16; B23K9/173; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/295; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7009
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-25 | 1973-11-24 | 1974-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-25 | 1977-11-24 | 1978-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-25 | 1981-11-24 | 1982-05-26 | $7700.00 | Window Closed / Lapsed |