Patent US2496301A successfully refreshed from Google Patents.
US2496301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube bundle assembly for heat exchangers and the like
Assignee: HOWARD IRON WORKS Inc
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Filing: 1944-02-16
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Granted: 1950-02-07
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Expires: 1964-02-16
Abstract
No abstract record available.
Inventors
- 👤 Meixl Carl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:11
CPC Classifications
F; F28; F28F; F28F21/00; F28F21/02; F28F9/00; F28F9/22; F28F2009/222; F28F2009/226; Y; Y10; Y10S; Y10S165/00; Y10S165/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1335506A
Cited
US1454053A
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US1726943A
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US1798354A
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US2018037A
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US2181704A
Cited
US2152266A
Cited
US2181486A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |