US3487195A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for use of machines carrying out spot welding in an inert atmosphere
Assignee: NORD AVIAT SOC NATIONALE DE CO
•
Filing: 1964-12-29
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Granted: 1969-12-30
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Expires: 1984-12-29
Abstract
No abstract record available.
Inventors
- 👤 Jean Denis
- 👤 Michel Darees
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 01:14
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2262705A
Cited
US2429186A
Cited
US2573901A
Cited
US2845524A
Cited
US2829238A
Cited
US3102948A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |