Patent US2621145A successfully refreshed from Google Patents.
US124397A
Expired / Lapsed
US
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Improvement in explosive compounds
Assignee: —
•
Filing: —
•
Granted: 1872-03-05
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Expires: 1889-03-05
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:48
CPC Classifications
C; C06; C06B; C06B21/00; C06B21/0008
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) | 1875-03-05 | 1875-09-04 | 1876-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1879-03-05 | 1879-09-04 | 1880-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1883-03-05 | 1883-09-04 | 1884-03-05 | $7700.00 | Window Closed / Lapsed |