Patent US2217419A successfully refreshed from Google Patents.
US2217419A
Expired / Lapsed
US
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Thermostatically controlled device
Assignee: Metals and Controls Corp
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Filing: 1935-12-24
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Granted: 1940-10-08
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Expires: 1955-12-24
Abstract
No abstract record available.
Inventors
- 👤 Waldo A Saul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:07
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/12; G05D23/125; G05D23/126; G05D23/127; G05D23/128; Y; Y10; Y10T; Y10T137/00; Y10T137/1407; Y10T137/8593; Y10T137/86928; Y10T137/86992
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-10-08 | 1944-04-08 | 1944-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-08 | 1948-04-08 | 1948-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-08 | 1952-04-08 | 1952-10-08 | $7700.00 | Window Closed / Lapsed |