US3498352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking threaded element
Assignee: Emhart Enterprises Corp
•
Filing: 1967-04-05
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Granted: 1970-03-03
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Expires: 1987-04-05
Abstract
No abstract record available.
Inventors
- 👤 Richard J Duffy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:58
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/34; B; B05; B05B; B05B1/00; B05B1/02; B05B1/04; B05B1/044; B05B13/00; B05B13/02; B05B13/0221; B05B13/0264; B05B7/00; B05B7/14; B05B7/1481; B05B7/1486; F16B33/00; F16B33/06; B05D; B05D2202/00; B05D2258/00; B05D2258/02; B05D2401/00; B05D2401/30; B05D2401/32; B05D3/00; B05D3/02; B05D3/0218; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947
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) | 1973-03-02 | 1973-09-01 | 1974-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-02 | 1977-09-01 | 1978-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-02 | 1981-09-01 | 1982-03-03 | $7700.00 | Window Closed / Lapsed |