US3542942A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High voltage cable termination
Assignee: 3M Co
•
Filing: 1969-09-25
•
Granted: 1970-11-24
•
Expires: 1989-09-25
Abstract
No abstract record available.
Inventors
- 👤 Leonard A Johnson
- 👤 Harold G Hervig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:05
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H02G15/064; H02G15/068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3377420A
Cited
US3322883A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-23 | 1974-05-25 | 1974-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-23 | 1978-05-25 | 1978-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-23 | 1982-05-25 | 1982-11-24 | $7700.00 | Window Closed / Lapsed |