Patent US2053036A successfully refreshed from Google Patents.
US2053036A
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US
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Heat exchange apparatus
Assignee: L J MUELLER FURNACE Co
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Filing: 1935-06-21
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Granted: 1936-09-01
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Expires: 1955-06-21
Abstract
No abstract record available.
Inventors
- 👤 Edwin A Jones
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:17
CPC Classifications
F; F24; F24H; F24H3/00; F24H3/02; F24H3/06; Y; Y10; Y10S; Y10S165/00; Y10S165/228; Y10S165/302; Y10S165/307
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) | 1939-09-01 | 1940-03-02 | 1940-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-01 | 1944-03-02 | 1944-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-01 | 1948-03-02 | 1948-09-01 | $7700.00 | Window Closed / Lapsed |