Patent US1962617A successfully refreshed from Google Patents.
US915974A
Expired / Lapsed
US
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Automatic thermo-electric control.
Assignee: Individual
•
Filing: 1906-01-05
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Granted: 1909-03-23
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Expires: 1926-01-05
Abstract
No abstract record available.
Inventors
- 👤 Harry Ward Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:23
CPC Classifications
H; H05; H05B; H05B1/00; H05B1/02; H05B1/0202; H05B2203/00; H05B2203/017
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) | 1912-03-22 | 1912-09-21 | 1913-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-03-22 | 1916-09-21 | 1917-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-03-22 | 1920-09-21 | 1921-03-23 | $7700.00 | Window Closed / Lapsed |