US2592094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck key holder for drill motors
Assignee: Individual
•
Filing: 1950-05-17
•
Granted: 1952-04-08
•
Expires: 1970-05-17
Abstract
No abstract record available.
Inventors
- 👤 Paul M Willenbring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:12
CPC Classifications
B; B02; B02C; B02C17/00; B23; B23B; B23B45/00; B23B45/006; Y; Y10; Y10S; Y10S408/00; Y10S408/71; Y10T; Y10T279/00; Y10T279/34; Y10T279/3431; Y10T279/3443; Y10T408/00; Y10T408/94; Y10T408/95; Y10T408/953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-08 | 1955-10-08 | 1956-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-08 | 1959-10-08 | 1960-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-08 | 1963-10-08 | 1964-04-08 | $7700.00 | Window Closed / Lapsed |