Patent US3014683A successfully refreshed from Google Patents.
US3014683A
Expired / Lapsed
US
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Swivel fittings for playground swings and the like
Assignee: Nixdorff Krein Manufacturing Co
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Filing: 1957-08-22
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Granted: 1961-12-26
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Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Ellis C Littmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:37
CPC Classifications
A; A63; A63G; A63G9/00; Y; Y10; Y10T; Y10T403/00; Y10T403/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1321742A
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US1088105A
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US1124890A
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US1580015A
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US2625357A
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US2613422A
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US2662571A
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US2867874A
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US2789871A
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US2900160A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-12-25 | 1965-06-26 | 1965-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-25 | 1969-06-26 | 1969-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-25 | 1973-06-26 | 1973-12-26 | $7700.00 | Window Closed / Lapsed |