Patent US2399404A successfully refreshed from Google Patents.
US2399404A
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US
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Precision pressure measuring press
Assignee: Hydraulic Development Corp Inc
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Filing: 1943-07-05
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Granted: 1946-04-30
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Expires: 1963-07-05
Abstract
No abstract record available.
Inventors
- 👤 Otto M Summers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:47
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/16; B30B15/22
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) | 1949-04-29 | 1949-10-29 | 1950-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-04-29 | 1953-10-29 | 1954-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-04-29 | 1957-10-29 | 1958-04-30 | $7700.00 | Window Closed / Lapsed |