Patent US2973448A successfully refreshed from Google Patents.
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 19:40
CPC Classifications
H; H01; H01T; H01T4/00; H01T4/16; H01T4/18
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1689781A
Cited
CA478212A
Cited
US1655972A
Cited
US1754158A
Cited
US2151559A
Cited
US2135085A
Cited
US2542805A
Cited
US2586285A
Cited
US2661439A
Cited
US2677072A
Cited
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 |