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US979931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scaling, annealing, and coating metals.
Assignee: METALLOIDS Ltd
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Filing: 1909-10-29
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Granted: 1910-12-27
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Expires: 1929-10-29
Abstract
No abstract record available.
Inventors
- 👤 Sherard Osborn Cowper-Coles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:52
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74; C21D1/76
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) | 1913-12-26 | 1914-06-27 | 1914-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1917-12-26 | 1918-06-27 | 1918-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1921-12-26 | 1922-06-27 | 1922-12-27 | $7700.00 | Window Closed / Lapsed |