US2973448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lightning arrester and housing therefor
Assignee: Ohio Brass Co
•
Filing: 1957-09-23
•
Granted: 1961-02-28
•
Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Arnold G Yost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:19
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/16; H01T4/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1689781A
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CA478212A
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US1655972A
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US1754158A
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US2151559A
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US2135085A
Cited
US2542805A
Cited
US2586285A
Cited
US2661439A
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US2677072A
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US2783410A
Cited
US2795725A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |