Patent US3435616A successfully refreshed from Google Patents.
US3435616A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Equalizing system for hydraulic motors
Assignee: Danfoss AS
•
Filing: 1967-02-28
•
Granted: 1969-04-01
•
Expires: 1987-02-28
Abstract
No abstract record available.
Inventors
- 👤 Jorgen F Waldorff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:37
CPC Classifications
F; F16; F16H; F16H61/00; F16H61/38; F16H61/40; F16H61/44; F16H61/456; B; B60; B60K; B60K17/00; B60K17/04; B60K17/10; F16H39/00; F16H39/02
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) | 1972-03-31 | 1972-09-30 | 1973-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-31 | 1976-09-30 | 1977-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-31 | 1980-09-30 | 1981-04-01 | $7700.00 | Window Closed / Lapsed |