Patent US2083937A successfully refreshed from Google Patents.
US2083937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible conduit
Assignee: Midland Steel Products Co
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Filing: 1934-05-17
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Granted: 1937-06-15
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Expires: 1954-05-17
Abstract
No abstract record available.
Inventors
- 👤 Russell S Begg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:47
CPC Classifications
F; F16; F16C; F16C1/00; F16C1/24; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20396; Y10T74/20402; Y10T74/2045; Y10T74/20456
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) | 1940-06-14 | 1940-12-14 | 1941-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-06-14 | 1944-12-14 | 1945-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-06-14 | 1948-12-14 | 1949-06-15 | $7700.00 | Window Closed / Lapsed |