US1890445A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric blasting machine
Assignee: EIDP Inc
•
Filing: 1929-10-08
•
Granted: 1932-12-13
•
Expires: 1949-10-08
Abstract
No abstract record available.
Inventors
- 👤 Horace W Asire
- 👤 Wallace W Perkins
- 👤 Edward J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:19
CPC Classifications
H; H02; H02K; H02K7/00; H02K7/18; H02K7/1807; H02K7/1853; F; F42; F42D; F42D1/00; F42D1/04; F42D1/045; F42D1/05
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) | 1935-12-13 | 1936-06-13 | 1936-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-12-13 | 1940-06-13 | 1940-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-12-13 | 1944-06-13 | 1944-12-13 | $7700.00 | Window Closed / Lapsed |