Patent US2425448A successfully refreshed from Google Patents.
US2425448A
Expired / Lapsed
US
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Welded bulb and cap
Assignee: Knapp Monarch Co
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Filing: 1944-05-16
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Granted: 1947-08-12
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Expires: 1964-05-16
Abstract
No abstract record available.
Inventors
- 👤 Millard F Weida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:58
CPC Classifications
F; F17; F17C; F17C13/00; F17C13/06; F17C2270/00; F17C2270/07; F17C2270/0736
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US650429A
Cited
US1648026A
Cited
US1691778A
Cited
US1968976A
Cited
US2061641A
Cited
US2265561A
Cited
US2352754A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-08-11 | 1951-02-10 | 1951-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-08-11 | 1955-02-10 | 1955-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-08-11 | 1959-02-10 | 1959-08-12 | $7700.00 | Window Closed / Lapsed |