Patent US3456437A successfully refreshed from Google Patents.
US3456437A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Single speed floating control system operating bleed valve to limit turbodischarge pressure to a fixed differential below exhaust pressure
Assignee: Mack Trucks Inc
•
Filing: 1967-04-12
•
Granted: 1969-07-22
•
Expires: 1987-04-12
Abstract
No abstract record available.
Inventors
- 👤 Harry B Rath
- 👤 Leo F Kasaczun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:02
CPC Classifications
F; F04; F04D; F04D27/00; F04D27/02; F04D27/0292; F02; F02C; F02C6/00; F02C6/04; F02C6/10; F02C6/12; F04D27/0207; F04D27/0223; F04D27/023; F05; F05D; F05D2220/00; F05D2220/40
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1557793A
Cited
US2005821A
Cited
US2480621A
Cited
US2559623A
Cited
US2567486A
Cited
US2645409A
Cited
US2968914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |