US2020156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conduit joint forming means
Assignee: LOCOMOTIVE FINISHED MATERIAL C
•
Filing: 1934-01-15
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Granted: 1935-11-05
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Expires: 1954-01-15
Abstract
No abstract record available.
Inventors
- 👤 Henry E Muchnic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:05
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/04; F16L23/08; F16L23/10; E; E21; E21F; E21F15/00; E21F15/08; F16L21/00; F16L21/06; F16L43/00
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) | 1938-11-04 | 1939-05-06 | 1939-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-11-04 | 1943-05-06 | 1943-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-11-04 | 1947-05-06 | 1947-11-05 | $7700.00 | Window Closed / Lapsed |