Patent US1024555A successfully refreshed from Google Patents.
US1024555A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of vacuum lightning-arresters.
Assignee: NATIONAL ELECTRIC SPECIALTY Co
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Filing: 1910-11-16
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Granted: 1912-04-30
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Expires: 1930-11-16
Abstract
No abstract record available.
Inventors
- 👤 Frank S Chapman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:01
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/38; H01J9/395
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1915-04-30 | 1915-10-30 | 1916-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-04-30 | 1919-10-30 | 1920-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-04-30 | 1923-10-30 | 1924-04-30 | $7700.00 | Window Closed / Lapsed |