US3387669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact wrench torque-measuring device
Assignee: Ingersoll Rand Co
•
Filing: 1966-01-20
•
Granted: 1968-06-11
•
Expires: 1986-01-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter R Wise
- 👤 Morton P Nashman
- 👤 Jr Lloyd P Walker
- 👤 Roger T Bergquist
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:21
CPC Classifications
B; B25; B25B; B25B23/00; B25B23/14; B25B23/145; B25B23/1453
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2808916A
Cited
US2889902A
Cited
US3195702A
Cited
US3162250A
Cited
US3131554A
Cited
US3174559A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |