Patent US3599629A successfully refreshed from Google Patents.
US3247754A
Expired / Lapsed
US
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Self-drilling anchor bolt
Assignee: Individual
•
Filing: 1963-08-08
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Granted: 1966-04-26
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Expires: 1983-08-08
Abstract
No abstract record available.
Inventors
- 👤 Dennis W Bieser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:27
CPC Classifications
F; F16; F16B; F16B13/00; F16B13/002; Y; Y10; Y10S; Y10S411/00; Y10S411/999
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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |