US1285583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for quenching steel artillery-shells.
Assignee: Electric Furnace Co
•
Filing: 1918-06-14
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Granted: 1918-11-26
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Expires: 1938-06-14
Abstract
No abstract record available.
Inventors
- 👤 Thaddeus F Baily
- 👤 Frank T Cope
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:24
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/50; A47L15/507
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) | 1921-11-25 | 1922-05-27 | 1922-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1925-11-25 | 1926-05-27 | 1926-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1929-11-25 | 1930-05-27 | 1930-11-26 | $7700.00 | Window Closed / Lapsed |