US2443660A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic timer
Assignee: Westinghouse Electric Corp
•
Filing: 1945-05-19
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Granted: 1948-06-22
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Expires: 1965-05-19
Abstract
No abstract record available.
Inventors
- 👤 William E Large
- 👤 Wilbur R Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:56
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/248
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1867225A
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US2171347A
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US2292846A
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US2251763A
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US2306237A
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US2364680A
Cited
US2371981A
Cited
US2366060A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |