US2422693A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attaching device
Assignee: Reconstruction Finance Corp
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Filing: 1944-09-15
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Granted: 1947-06-24
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Expires: 1964-09-15
Abstract
No abstract record available.
Inventors
- 👤 Mcarthur Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:20
CPC Classifications
F; F16; F16B; F16B21/00; F16B21/09; Y; Y10; Y10T; Y10T24/00; Y10T24/45; Y10T24/45225; Y10T24/45471; Y10T24/45513; Y10T24/45518; Y10T24/45984; Y10T24/4599; Y10T70/00; Y10T70/80; Y10T70/8432; Y10T70/8649
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |