Patent US2423537A successfully refreshed from Google Patents.
US2423537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fire detecting cable
Assignee: Individual
•
Filing: 1943-03-05
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Granted: 1947-07-08
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Expires: 1963-03-05
Abstract
No abstract record available.
Inventors
- 👤 Dock R Wheeler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:58
CPC Classifications
H; H01; H01B; H01B7/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1129358A
Cited
US1235028A
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US1283260A
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US1608184A
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FR590344A
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US1738828A
Cited
US1779610A
Cited
US2048271A
Cited
US1962041A
Cited
US2161395A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-07 | 1951-01-06 | 1951-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-07 | 1955-01-06 | 1955-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-07 | 1959-01-06 | 1959-07-08 | $7700.00 | Window Closed / Lapsed |