Patent US2556363A successfully refreshed from Google Patents.
US2556363A
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US
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Alarm system with circuit integrity checking means
Assignee: LORD TABER Co
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Filing: 1948-09-23
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Granted: 1951-06-12
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Expires: 1968-09-23
Abstract
No abstract record available.
Inventors
- 👤 Kenneth M Lord
- 👤 Philip N Bredesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:32
CPC Classifications
G; G08; G08B; G08B29/00; G08B29/02; G08B29/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1772671A
Cited
US2052057A
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US1909212A
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US2220371A
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US2223103A
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GB534300A
Cited
US2355934A
Cited
US2452942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-11 | 1954-12-11 | 1955-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-11 | 1958-12-11 | 1959-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-11 | 1962-12-11 | 1963-06-12 | $7700.00 | Window Closed / Lapsed |