US3209115A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for use in electric welding of the edges of the longitudinal seam in a metal tube
Assignee: US Philips Corp
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Filing: 1964-03-17
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Granted: 1965-09-28
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Expires: 1984-03-17
Abstract
No abstract record available.
Inventors
- 👤 Dirk Christian Van Iperen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:17
CPC Classifications
B; B23; B23K; B23K13/00; B23K13/04; B23K13/043; B23K13/046; B23K13/01; B23K13/02; B23K13/025
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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |