US3060894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rock drill
Assignee: Ingersoll Rand Co
•
Filing: 1960-02-29
•
Granted: 1962-10-30
•
Expires: 1980-02-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert C Dean
- 👤 Auksmann Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:00
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/08; B25D17/00; B25D17/24; B25D17/245; B25D9/14; B25D9/16; B25D9/20; B25D2209/00; B25D2209/005; B25D2250/00; B25D2250/341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1416086A
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US2072445A
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US2400650A
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US2679826A
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US2762341A
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US2748750A
Cited
US2752889A
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US2900959A
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US2906244A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-29 | 1966-04-30 | 1966-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-29 | 1970-04-30 | 1970-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-29 | 1974-04-30 | 1974-10-30 | $7700.00 | Window Closed / Lapsed |