US2230959A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orifice plate
Assignee: Individual
•
Filing: 1938-05-23
•
Granted: 1941-02-04
•
Expires: 1958-05-23
Abstract
No abstract record available.
Inventors
- 👤 William R Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:11
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40; G01F1/42; B; B29; B29C; B29C67/00; B32; B32B; B32B27/00
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) | 1944-02-04 | 1944-08-05 | 1945-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-02-04 | 1948-08-05 | 1949-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-02-04 | 1952-08-05 | 1953-02-04 | $7700.00 | Window Closed / Lapsed |