US3437785A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for electron beam welding of overlapped sheets
Assignee: Sciaky Brothers Inc
•
Filing: 1966-05-06
•
Granted: 1969-04-08
•
Expires: 1986-05-06
Abstract
No abstract record available.
Inventors
- 👤 David Sciaky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:55
CPC Classifications
B; B23; B23K; B23K15/00; B23K15/0046; B23K15/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3016449A
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US3187216A
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US3136882A
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US3301993A
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US3174026A
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US3219792A
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US3258576A
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US3264004A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |