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Patent US2465981A successfully refreshed from Google Patents.
US2465981A
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US
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Assembly for temperatureresponsive devices
Assignee: Leeds and Northrup Co
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Filing: 1945-04-24
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Granted: 1949-03-29
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Expires: 1965-04-24
Abstract
No abstract record available.
Inventors
- 👤 Robertson Donald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:28
CPC Classifications
G; G01; G01K; G01K1/00; G01K1/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1308994A
Cited
US1232451A
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US1363474A
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US2113610A
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US2102030A
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US2135078A
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US2156826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-28 | 1952-09-27 | 1953-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-28 | 1956-09-27 | 1957-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-28 | 1960-09-27 | 1961-03-29 | $7700.00 | Window Closed / Lapsed |