US3460436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic regulating system and apparatus
Assignee: Individual
•
Filing: 1967-05-24
•
Granted: 1969-08-12
•
Expires: 1987-05-24
Abstract
No abstract record available.
Inventors
- 👤 Michio Takeda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:00
CPC Classifications
F; F15; F15C; F15C3/00; F15C3/10; F15C3/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1776817A
Cited
FR695260A
Cited
US2990839A
Cited
DE1092710B
Cited
US2904057A
Cited
US3081787A
Cited
US3347253A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-11 | 1973-02-10 | 1973-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-11 | 1977-02-10 | 1977-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-11 | 1981-02-10 | 1981-08-12 | $7700.00 | Window Closed / Lapsed |