US838748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge.
Assignee: EI du Pont de Nemours Powder Co
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Filing: 1905-08-02
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Granted: 1906-12-18
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Expires: 1925-08-02
Abstract
No abstract record available.
Inventors
- 👤 Francis I Du Pont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:05
CPC Classifications
C; C06; C06B; C06B45/00
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) | 1909-12-17 | 1910-06-18 | 1910-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1913-12-17 | 1914-06-18 | 1914-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1917-12-17 | 1918-06-18 | 1918-12-18 | $7700.00 | Window Closed / Lapsed |