Patent US3030131A successfully refreshed from Google Patents.
US3030131A
Expired / Lapsed
US
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Fastener construction
Assignee: Grayhill Inc
•
Filing: 1958-05-23
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Granted: 1962-04-17
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Expires: 1978-05-23
Abstract
No abstract record available.
Inventors
- 👤 George A Scherry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:03
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7041; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US307570A
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US1309675A
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US1537227A
Cited
GB315014A
Cited
US1800055A
Cited
US1998649A
Cited
US2197140A
Cited
US2241724A
Cited
US2305099A
Cited
GB706620A
Cited
US2855013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |