Patent US3539706A successfully refreshed from Google Patents.
US3539706A
Expired / Lapsed
US
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Thermal expansion resistant cable accessory installation for heavy current electric cables
Assignee: Pirelli and C SpA
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Filing: 1968-06-28
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Granted: 1970-11-10
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Expires: 1988-06-28
Abstract
No abstract record available.
Inventors
- 👤 Vittorio Buroni
- 👤 Agostino Oriani
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:09
CPC Classifications
H; H02; H02G; H02G15/00; H02G15/02; H02G15/06; H02G15/064; H02G15/08; H02G15/10; H02G15/103
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) | 1973-11-09 | 1974-05-11 | 1974-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-09 | 1978-05-11 | 1978-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-09 | 1982-05-11 | 1982-11-10 | $7700.00 | Window Closed / Lapsed |