Patent US2157003A successfully refreshed from Google Patents.
US3486569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impact mechanism
Assignee: Black and Decker Corp
•
Filing: 1968-05-06
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Granted: 1969-12-30
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Expires: 1988-05-06
Abstract
No abstract record available.
Inventors
- 👤 Charles B Sieber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 15:34
CPC Classifications
B; B25; B25D; B25D11/00; B25D11/06; B25D11/066; B25D11/068; B25B; B25B21/00; B25B21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2373664A
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US2539930A
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US2461571A
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US2636583A
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US2850128A
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US2947283A
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US2888246A
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US3127941A
Cited
US3129796A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-29 | 1973-06-30 | 1973-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-29 | 1977-06-30 | 1977-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-29 | 1981-06-30 | 1981-12-30 | $7700.00 | Window Closed / Lapsed |