US2309983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple cylinder press
Assignee: Hydraulic Development Corp Inc
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Filing: 1941-03-06
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Granted: 1943-02-02
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Expires: 1961-03-06
Abstract
No abstract record available.
Inventors
- 👤 William J Riddle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:41
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/16; F15B11/17; B; B30; B30B; B30B15/00; B30B15/16; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20546; F15B2211/20553; F15B2211/20576; F15B2211/25; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/32; F15B2211/327; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50536; F15B2211/60; F15B2211/605; F15B2211/6051; F15B2211/6052; F15B2211/63; F15B2211/6303; F15B2211/6306; F15B2211/6313; F15B2211/70; F15B2211/71; F15B2211/7142
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) | 1946-02-01 | 1946-08-03 | 1947-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-02-01 | 1950-08-03 | 1951-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-02-01 | 1954-08-03 | 1955-02-02 | $7700.00 | Window Closed / Lapsed |