US1234946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrode-packing for melting-furnaces.
Assignee: Krupp Stahl AG
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Filing: 1914-11-13
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Granted: 1917-07-31
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Expires: 1934-11-13
Abstract
No abstract record available.
Inventors
- 👤 Martin Sperling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:09
CPC Classifications
H; H05; H05B; H05B7/00; H05B7/02; H05B7/12
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) | 1920-07-30 | 1921-01-29 | 1921-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1924-07-30 | 1925-01-29 | 1925-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1928-07-30 | 1929-01-29 | 1929-07-31 | $7700.00 | Window Closed / Lapsed |