Patent US3512224A successfully refreshed from Google Patents.
US3512224A
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Grommet fastener and method for setting same
Assignee: Emhart Enterprises Corp
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Filing: 1968-04-29
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Granted: 1970-05-19
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Expires: 1988-04-29
Abstract
No abstract record available.
Inventors
- 👤 Albert E Newton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:06
CPC Classifications
A; A44; A44B; A44B13/00; A44B13/0058; A44B13/0076; A44B13/0082; A43; A43C; A43C5/00; Y; Y10; Y10T; Y10T24/00; Y10T24/37; Y10T24/3742; Y10T24/3745; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49885; Y10T29/49888; Y10T29/49908; Y10T29/49915; Y10T29/4992
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) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |