US3383975A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-locking insert assembly
Assignee: Delron Co Inc
•
Filing: 1966-02-21
•
Granted: 1968-05-21
•
Expires: 1986-02-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth V Cushman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:48
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/023; F16B39/22; F16B39/28; F16B39/284; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/954
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE54792C
Cited
FR319996A
Cited
US1076388A
Cited
AU1486028A
Cited
GB541626A
Cited
GB601453A
Cited
US2403810A
Cited
CH342362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-05-21 | 1971-11-20 | 1972-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-21 | 1975-11-20 | 1976-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-21 | 1979-11-20 | 1980-05-21 | $7700.00 | Window Closed / Lapsed |