Patent US5723007A successfully refreshed from Google Patents.
Patent US2124087A successfully refreshed from Google Patents.
Patent US3480823A successfully refreshed from Google Patents.
Patent US2765834A successfully refreshed from Google Patents.
US2765834A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helical split lock washer comprising interconnected helical flange means
Assignee: Illinois Tool Works Inc
•
Filing: 1955-05-04
•
Granted: 1956-10-09
•
Expires: 1975-05-04
Abstract
No abstract record available.
Inventors
- 👤 Poupitch Ougljesa Jules
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:27
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/24; Y; Y10; Y10S; Y10S411/00; Y10S411/915; Y10S411/955; Y10S411/956; Y10S411/957; Y10S411/958; Y10S411/959
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |