Patent US2434525A successfully refreshed from Google Patents.
US2434525A
Expired / Lapsed
US
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Coating on metals
Assignee: Rheem Manufacturing Co
•
Filing: 1943-08-23
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Granted: 1948-01-13
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Expires: 1963-08-23
Abstract
No abstract record available.
Inventors
- 👤 Robert M Thomas
- 👤 Charles W Ostrander
- 👤 Walter H Kaelin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:50
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/24; C23C22/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2016904A
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US1911726A
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US2035380A
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US1967715A
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US2114151A
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US2276353A
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US2080348A
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US2313925A
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US2169584A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-12 | 1951-07-14 | 1952-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-12 | 1955-07-14 | 1956-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-12 | 1959-07-14 | 1960-01-13 | $7700.00 | Window Closed / Lapsed |