US2636752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conduit with branch applied against spot face of headers
Assignee: Allis Chalmers Corp
•
Filing: 1947-11-24
•
Granted: 1953-04-28
•
Expires: 1967-11-24
Abstract
No abstract record available.
Inventors
- 👤 Harry P Schane
- 👤 Benjamin E Fiddler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:01
CPC Classifications
F; F16; F16L; F16L41/00; F16L41/08; F16L41/082; F16L41/084
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB425336A
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US2174218A
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US2126519A
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US2183043A
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US2113060A
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US2368391A
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US2464743A
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US2596320A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-27 | 1956-10-27 | 1957-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-27 | 1960-10-27 | 1961-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-27 | 1964-10-27 | 1965-04-28 | $7700.00 | Window Closed / Lapsed |