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US2687289A
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US
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Apparatus for heat-treating on thermometers
Assignee: OI Glass Inc
•
Filing: 1952-08-26
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Granted: 1954-08-24
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Expires: 1972-08-26
Abstract
No abstract record available.
Inventors
- 👤 Leon E Cline
- 👤 Dudley C Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:06
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/02; Y; Y10; Y10S; Y10S65/00; Y10S65/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2019599A
Cited
US2220096A
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US2264496A
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US2455085A
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US2456469A
Cited
US2589390A
Cited
US2610445A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |