US3452962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of reducing pressure rise in a hydraulic machine
Assignee: Baldwin Lima Hamilton Corp
•
Filing: 1966-12-01
•
Granted: 1969-07-01
•
Expires: 1986-12-01
Abstract
No abstract record available.
Inventors
- 👤 Richard B Willi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:13
CPC Classifications
F; F03; F03B; F03B15/00; F03B15/02; F03B15/04; F03B15/06; F03B15/18; Y; Y02; Y02E; Y02E10/00; Y02E10/20; Y10; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0379
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3063460A
Cited
US3051186A
Cited
US3345823A
Cited
US3339567A
Cited
US3276461A
Cited
US3275293A
Cited
US3309057A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |