US40198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Improvement in incendiary shells
Assignee: —
•
Filing: —
•
Granted: 1863-10-06
•
Expires: 1880-10-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:14
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/20; F42B12/201; F42B12/204
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) | 1866-10-05 | 1867-04-06 | 1867-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1870-10-05 | 1871-04-06 | 1871-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1874-10-05 | 1875-04-06 | 1875-10-06 | $7700.00 | Window Closed / Lapsed |