Patent US1955006A successfully refreshed from Google Patents.
US1955006A
Expired / Lapsed
US
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Lubricated baffle for heat exchangers
Assignee: Standard Oil Development Co
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Filing: 1932-12-02
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Granted: 1934-04-17
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Expires: 1952-12-02
Abstract
No abstract record available.
Inventors
- 👤 George L Mateer
- 👤 Casper P Haller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:05
CPC Classifications
F; F28; F28F; F28F9/00; F28F9/22; F28F2009/222; F28F2009/224; F28F2230/00; F28F2275/00; F28F2275/10; F28F2275/14; Y; Y10; Y10S; Y10S122/00; Y10S122/03
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) | 1937-04-16 | 1937-10-16 | 1938-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-04-16 | 1941-10-16 | 1942-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-04-16 | 1945-10-16 | 1946-04-17 | $7700.00 | Window Closed / Lapsed |