US2166423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic device
Assignee: Individual
•
Filing: 1936-05-04
•
Granted: 1939-07-18
•
Expires: 1956-05-04
Abstract
No abstract record available.
Inventors
- 👤 Max J Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:12
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/04; F15B11/042; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/20553; F15B2211/255; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/40; F15B2211/405; F15B2211/40515; F15B2211/415; F15B2211/41527; F15B2211/46; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7053; F15B2211/75
Claims Analysis
Total Claims: 0
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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) | 1942-07-17 | 1943-01-16 | 1943-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-07-17 | 1947-01-16 | 1947-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-07-17 | 1951-01-16 | 1951-07-18 | $7700.00 | Window Closed / Lapsed |