Patent US3490509A successfully refreshed from Google Patents.
US3490509A
Expired / Lapsed
US
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Captive nut assembly
Assignee: ELECTRIC REGULATOR CORP
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Filing: 1967-11-14
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Granted: 1970-01-20
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Expires: 1987-11-14
Abstract
No abstract record available.
Inventors
- 👤 Christian S Otteson
- 👤 James P Ettinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:38
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/044; F16B5/00; F16B5/02; F16B5/025; F16B5/0266; H; H10; H10W; H10W90/00; Y; Y10; Y10S; Y10S411/00; Y10S411/999
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB790781A
Cited
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Cited
US3093222A
Cited
US3149828A
Cited
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Cited
US3289726A
Cited
US3263728A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |