US2455271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic apparatus
Assignee: SIMPLEX ENGINEERING Co
•
Filing: 1944-06-16
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Granted: 1948-11-30
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Expires: 1964-06-16
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:30
CPC Classifications
F; F04; F04D; F04D13/00; F04D13/12; F15; F15B; F15B11/00; F15B11/02; F15B11/022; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/20507; F15B2211/20515; F15B2211/20576; F15B2211/20592; F15B2211/25; F15B2211/60; F15B2211/62; F15B2211/70; F15B2211/775; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2564; Y10T137/2572; Y10T137/8593; Y10T137/85978; Y10T137/86035; Y10T137/86059
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1523698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-30 | 1952-05-31 | 1952-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-30 | 1956-05-31 | 1956-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-30 | 1960-05-31 | 1960-11-30 | $7700.00 | Window Closed / Lapsed |