Patent US2447048A successfully refreshed from Google Patents.
US2447048A
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US
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Arrester element
Assignee: Union Carbide Corp
•
Filing: 1944-01-15
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Granted: 1948-08-17
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Expires: 1964-01-15
Abstract
No abstract record available.
Inventors
- 👤 Harry J Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:29
CPC Classifications
A; A62; A62C; A62C4/00; A62C4/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49398; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49938; Y10T29/49943
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE548737C
Cited
US1420405A
Cited
US1497197A
Cited
US1869260A
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US2157596A
Cited
US2213043A
Cited
US2267918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |