Patent US3959693B1 successfully refreshed from Google Patents.
US2936049A
Expired / Lapsed
US
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Stud shoe clip
Assignee: National Gypsum Co
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Filing: 1956-05-17
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Granted: 1960-05-10
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Expires: 1976-05-17
Abstract
No abstract record available.
Inventors
- 👤 John K Hovind
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:47
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/825; Y; Y10; Y10T; Y10T403/00; Y10T403/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA486659A
Cited
US1101745A
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US1881760A
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US1862127A
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US1939223A
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US2121962A
Cited
US2202881A
Cited
US2796158A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |