US2776332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-cleaning outdoor high-tension insulators
Assignee: Siemens Schuckertwerke AG
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Filing: 1952-06-25
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Granted: 1957-01-01
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Expires: 1972-06-25
Abstract
No abstract record available.
Inventors
- 👤 Cron Hans Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:03
CPC Classifications
H; H01; H01B; H01B17/00; H01B17/52; H01B17/525
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) | 1960-01-01 | 1960-07-02 | 1961-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-01 | 1964-07-02 | 1965-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-01 | 1968-07-02 | 1969-01-01 | $7700.00 | Window Closed / Lapsed |