Patent US2056285A successfully refreshed from Google Patents.
US2056285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric regulator for furnaces and other apparatus
Assignee: Individual
•
Filing: 1933-07-14
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Granted: 1936-10-06
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Expires: 1953-07-14
Abstract
No abstract record available.
Inventors
- 👤 George A F Machlet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:55
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/60; G; G05; G05D; G05D23/00; G05D23/19; G05D23/20; G05D23/22; G05D23/2236; G05D23/2237
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) | 1939-10-06 | 1940-04-06 | 1940-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-10-06 | 1944-04-06 | 1944-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-10-06 | 1948-04-06 | 1948-10-06 | $7700.00 | Window Closed / Lapsed |