US1106138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming explosive powder into spherical grains.
Assignee: Individual
•
Filing: 1913-08-13
•
Granted: 1914-08-04
•
Expires: 1933-08-13
Abstract
No abstract record available.
Inventors
- 👤 Francis I Du Pont
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:15
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/22; B30B11/228; B29; B29C; B29C45/00; B29C45/17; B29C45/72; B29C45/73; B29C45/7312
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1917-08-03 | 1918-02-02 | 1918-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1921-08-03 | 1922-02-02 | 1922-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1925-08-03 | 1926-02-02 | 1926-08-04 | $7700.00 | Window Closed / Lapsed |