US2990812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact tool
Assignee: Ingersoll Rand Co
•
Filing: 1960-04-12
•
Granted: 1961-07-04
•
Expires: 1980-04-12
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert F Gattiker
- 👤 Lee W Ramstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:08
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B25B23/1453; Y; Y10; Y10S; Y10S415/00; Y10S415/904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2137462A
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US2246910A
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US2422733A
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US2569244A
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US2814277A
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US2903003A
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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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |