Patent US2162933A successfully refreshed from Google Patents.
US2162933A
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US
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Method of protecting condenser tubes and the like from corrosion or salt deposition
Assignee: ExxonMobil Oil Corp
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Filing: 1937-08-23
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Granted: 1939-06-20
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Expires: 1957-08-23
Abstract
No abstract record available.
Inventors
- 👤 John C Bolinger
- 👤 Wayne A Howard
- 👤 Woolley Park
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:57
CPC Classifications
C; C10; C10G; C10G19/00; C10G7/00; C10G7/10
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) | 1942-06-19 | 1942-12-19 | 1943-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-19 | 1946-12-19 | 1947-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-19 | 1950-12-19 | 1951-06-20 | $7700.00 | Window Closed / Lapsed |