Patent US3456330A successfully refreshed from Google Patents.
US3456330A
Expired / Lapsed
US
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Method of making and assembling a dead-blow hammerhead
Assignee: Vaughan and Bushnell Manufacturing Co
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Filing: 1967-02-16
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Granted: 1969-07-22
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Expires: 1987-02-16
Abstract
No abstract record available.
Inventors
- 👤 John C Norcross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:27
CPC Classifications
B; B25; B25D; B25D1/00; B25D1/12; B25D1/02; B25D2222/00; B25D2222/54; B25D2250/00; B25D2250/105; B25D2250/361; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49904; Y10T29/49945; Y10T29/4998; Y10T29/49988
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) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |