Patent US2563681A successfully refreshed from Google Patents.
US2563681A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Large bell assembly
Assignee: American Steel and Wire Company of New Jersey
•
Filing: 1946-03-01
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Granted: 1951-08-07
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Expires: 1966-03-01
Abstract
No abstract record available.
Inventors
- 👤 Harry O Johnson
- 👤 O'hare Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:19
CPC Classifications
C; C21; C21B; C21B7/00; C21B7/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US291773A
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US677665A
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US951128A
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US951704A
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US1020929A
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US1178522A
Cited
US1587911A
Cited
US1996784A
Cited
US2221803A
Cited
US2408945A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |