Patent US2135208A successfully refreshed from Google Patents.
US2135208A
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US
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Method and apparatus for coating and protecting metallic objects such as pipes, tanks, and the like from corrosion or other injury
Assignee: Union Oil Company of California
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Filing: 1935-05-21
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Granted: 1938-11-01
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Expires: 1955-05-21
Abstract
No abstract record available.
Inventors
- 👤 Ulric B Bray
- 👤 Maynard S Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:43
CPC Classifications
B; B05; B05C; B05C9/00; B05C9/08; Y; Y10; Y10S; Y10S118/00; Y10S118/11
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) | 1941-10-31 | 1942-05-02 | 1942-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-10-31 | 1946-05-02 | 1946-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-10-31 | 1950-05-02 | 1950-11-01 | $7700.00 | Window Closed / Lapsed |