Patent US3526247A successfully refreshed from Google Patents.
US3526247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: Borg Warner Corp
•
Filing: 1968-05-01
•
Granted: 1970-09-01
•
Expires: 1988-05-01
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Mcmillen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:19
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/0416; F15B13/0417; H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/87169; Y10T137/87177; Y10T137/87185
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-31 | 1974-03-02 | 1974-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-31 | 1978-03-02 | 1978-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-31 | 1982-03-02 | 1982-09-01 | $7700.00 | Window Closed / Lapsed |