Patent US2953876A successfully refreshed from Google Patents.
US2953876A
Expired / Lapsed
US
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Automatic blasting control
Assignee: EDNA I ZIEBER
•
Filing: 1958-11-05
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Granted: 1960-09-27
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Expires: 1978-11-05
Abstract
No abstract record available.
Inventors
- 👤 Harold C Zieber
- 👤 Ray E Brown
- 👤 Robert L Wengerd
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:37
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/02; B24C3/06; B24C3/062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1676576A
Cited
US1882541A
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US2012055A
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US1964920A
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US2063054A
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US2495269A
Cited
US2590819A
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US2669810A
Cited
US2869291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |