US2664121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power screw driver
Assignee: Illinois Tool Works Inc
•
Filing: 1951-02-17
•
Granted: 1953-12-29
•
Expires: 1971-02-17
Abstract
No abstract record available.
Inventors
- 👤 Travis Horace Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:28
CPC Classifications
B; B23; B23P; B23P19/00; B23P19/001; B23P19/04; B23P19/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1862845A
Cited
US2314760A
Cited
US2328383A
Cited
US2471793A
Cited
US2554732A
Cited
US2605792A
Cited
US2625967A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |