US2188407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine for forming springs
Assignee: Murray Corp
•
Filing: 1939-01-12
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Granted: 1940-01-30
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Expires: 1959-01-12
Abstract
No abstract record available.
Inventors
- 👤 Frank J Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:28
CPC Classifications
B; B21; B21F; B21F1/00; B21F1/04; A; A44; A44B; A44B19/00; A44B19/42; B21F11/00; B21F11/005; B21F35/00; B21F35/04; B21F43/00; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/953; Y10T; Y10T83/00; Y10T83/444; Y10T83/4564; Y10T83/4622; Y10T83/4625; Y10T83/4647
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) | 1943-01-29 | 1943-07-31 | 1944-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-29 | 1947-07-31 | 1948-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-29 | 1951-07-31 | 1952-01-30 | $7700.00 | Window Closed / Lapsed |