US3500886A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lock nut assembly
Assignee: Individual
•
Filing: 1968-11-29
•
Granted: 1970-03-17
•
Expires: 1988-11-29
Abstract
No abstract record available.
Inventors
- 👤 Fred Dvorak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:56
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B43/00; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/974; Y10S411/979; Y10S411/98
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1269059A
Cited
FR667058A
Cited
US2082228A
Cited
US2141701A
Cited
CH296754A
Cited
US2675044A
Cited
US2992018A
Cited
FR1282082A
Cited
US3190334A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |