US3433082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission and selector mechanism for alternate hammer and hammerdrill power tool
Assignee: Black and Decker Corp
•
Filing: 1967-09-20
•
Granted: 1969-03-18
•
Expires: 1987-09-20
Abstract
No abstract record available.
Inventors
- 👤 Kenneth D Bitter
- 👤 George E Atkinson
- 👤 William B Fogle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:05
CPC Classifications
B; B25; B25D; B25D16/00; B25D16/006; B25D2211/00; B25D2211/06; B25D2211/062; B25D2211/064; B25D2211/067; Y; Y10; Y10T; Y10T408/00; Y10T408/65; Y10T74/00; Y10T74/18; Y10T74/18024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2275898A
Cited
US2794621A
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US2979962A
Cited
US2970483A
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US2968960A
Cited
US3018674A
Cited
US3121813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |