US2941426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chuck key holder
Assignee: Black and Decker Corp
•
Filing: 1957-10-10
•
Granted: 1960-06-21
•
Expires: 1977-10-10
Abstract
No abstract record available.
Inventors
- 👤 Robert C Muller
- 👤 Richard G Bradyhouse
- 👤 Leonard J Kerpelman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:29
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/006; Y; Y10; Y10T; Y10T279/00; Y10T279/34; Y10T279/3431; Y10T279/3443; Y10T408/00; Y10T408/96
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2015404A
Cited
US2257559A
Cited
US2519987A
Cited
US2591477A
Cited
GB688260A
Cited
US2632930A
Cited
US2824651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |