Patent US3418683A successfully refreshed from Google Patents.
US3418683A
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US
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Combined hinge and catch assembly
Assignee: KEYCON INDUSTRIES Inc 4835 LBJ FREEWAY DALLAS TEXAS 75234 A CORP OF NEVADA
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Filing: 1966-04-21
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Granted: 1968-12-31
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Expires: 1986-04-21
Abstract
No abstract record available.
Inventors
- 👤 Roy A Stone
- 👤 Leslie M Ellis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:40
CPC Classifications
E; E05; E05D; E05D11/00; E05D11/10; E05D11/1014; E05D11/1028; E05D11/105; E05Y; E05Y2900/00; E05Y2900/20
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) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |