US2718148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple temperature indicator and overtemperature alarm
Assignee: Lewis Engineering Co
•
Filing: 1948-04-21
•
Granted: 1955-09-20
•
Expires: 1968-04-21
Abstract
No abstract record available.
Inventors
- 👤 Knud J Knudsen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:17
CPC Classifications
F; F22; F22B; F22B3/00; F22B3/02; G; G08; G08B; G08B21/00; G08B21/18; G08B21/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE322333C
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US1867870A
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US2027945A
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US2339116A
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US2420969A
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US2449304A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-19 | 1959-03-21 | 1959-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-19 | 1963-03-21 | 1963-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-19 | 1967-03-21 | 1967-09-20 | $7700.00 | Window Closed / Lapsed |