US2778648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compensating driver for tap chucks and the like
Assignee: Erickson Tool Co
•
Filing: 1954-03-26
•
Granted: 1957-01-22
•
Expires: 1974-03-26
Abstract
No abstract record available.
Inventors
- 👤 Milton L Benjamin
- 👤 Stanley S Benjamin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:17
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/08; Y; Y10; Y10T; Y10T279/00; Y10T279/17; Y10T279/17017; Y10T279/17034
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US335009A
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US632810A
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GB190213075A
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US836376A
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US942304A
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US1763717A
Cited
US1958817A
Cited
US2516709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-22 | 1960-07-23 | 1961-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-22 | 1964-07-23 | 1965-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-22 | 1968-07-23 | 1969-01-22 | $7700.00 | Window Closed / Lapsed |