US3386894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Formation of metallic contacts
Assignee: Nortel Networks Ltd
•
Filing: 1964-09-28
•
Granted: 1968-06-04
•
Expires: 1984-09-28
Abstract
No abstract record available.
Inventors
- 👤 Steppat Christian H Maximilian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:36
CPC Classifications
H; H10; H10W; H10W20/00; H10W20/40; H01; H01B; H01B1/00; H10N; H10N97/00; H10P; H10P14/00; H10P14/40; H10P14/42; H10P14/44; H10P95/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3169892A
Cited
US3296574A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |