US3400742A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Locknut
Assignee: Individual
•
Filing: 1968-01-03
•
Granted: 1968-09-10
•
Expires: 1988-01-03
Abstract
No abstract record available.
Inventors
- 👤 Wakabayashi Katsuhiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:52
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B39/36; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB553953A
Cited
DE1026575B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |