Patent US2487684A successfully refreshed from Google Patents.
US2487684A
Expired / Lapsed
US
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Snap-acting springing and thermostatic plate
Assignee: Metals and Controls Corp
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Filing: 1946-09-19
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Granted: 1949-11-08
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Expires: 1966-09-19
Abstract
No abstract record available.
Inventors
- 👤 Ezra S Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/48; G01K5/56; G01K5/62; G01K5/70; G01K5/72; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/08; G05D23/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |