US2445781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system for multiple hydraulic hoists
Assignee: HYDRAULIC EQUIPMENT Co
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Filing: 1946-12-05
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Granted: 1948-07-27
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Expires: 1966-12-05
Abstract
No abstract record available.
Inventors
- 👤 Jr Edward J Hrdlicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:57
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/16; F15B11/17; B; B66; B66F; B66F3/00; B66F3/46; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20576; F15B2211/30; F15B2211/305; F15B2211/3056; F15B2211/3059; F15B2211/30595; F15B2211/31; F15B2211/3105; F15B2211/3116; F15B2211/70; F15B2211/71; F15B2211/7142; F15B2211/78; F15B2211/782; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/8593; Y10T137/87048; Y10T137/87169; Y10T137/87177
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) | 1951-07-27 | 1952-01-26 | 1952-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-27 | 1956-01-26 | 1956-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-27 | 1960-01-26 | 1960-07-27 | $7700.00 | Window Closed / Lapsed |