US3538293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for welding conductors separated by thermoplastic insulation
Assignee: Elco Corp
•
Filing: 1968-12-10
•
Granted: 1970-11-03
•
Expires: 1988-12-10
Abstract
No abstract record available.
Inventors
- 👤 Robert Procacino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:47
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/16; B23K11/163
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1933936A
Cited
US2112716A
Cited
US2433827A
Cited
US2804536A
Cited
US3418444A
Cited
US3263059A
Cited
US3155809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-02 | 1974-05-04 | 1974-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-02 | 1978-05-04 | 1978-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-02 | 1982-05-04 | 1982-11-03 | $7700.00 | Window Closed / Lapsed |