Patent US3508418A successfully refreshed from Google Patents.
US3508418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spline closure seal
Assignee: C E CONOVER AND CO Inc
•
Filing: 1968-07-30
•
Granted: 1970-04-28
•
Expires: 1988-07-30
Abstract
No abstract record available.
Inventors
- 👤 David W Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:29
CPC Classifications
F; F16; F16D; F16D3/00; F16D3/02; F16D3/06; Y; Y10; Y10S; Y10S277/00; Y10S277/911; Y10S277/912; Y10T; Y10T403/00; Y10T403/70; Y10T403/7026; Y10T403/7028
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) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |