Patent US1847951A successfully refreshed from Google Patents.
US1847951A
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US
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Heating device
Assignee: General Electric Co
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Filing: 1931-01-23
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Granted: 1932-03-01
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Expires: 1951-01-23
Abstract
No abstract record available.
Inventors
- 👤 Earl G Klock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:17
CPC Classifications
B; B23; B23K; B23K3/00; B23K3/06; B23K3/0607; B23K3/0615; H; H05; H05B; H05B3/00
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) | 1935-03-01 | 1935-08-31 | 1936-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-03-01 | 1939-08-31 | 1940-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-03-01 | 1943-08-31 | 1944-03-01 | $7700.00 | Window Closed / Lapsed |