Patent US2453772A successfully refreshed from Google Patents.
US2453772A
Expired / Lapsed
US
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Aluminum coating process
Assignee: Fairchild Engine and Airplane Corp
•
Filing: 1945-03-06
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Granted: 1948-11-16
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Expires: 1965-03-06
Abstract
No abstract record available.
Inventors
- 👤 Marshall G Whitfield
- 👤 Sheshunoff Victor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:33
CPC Classifications
C; C23; C23C; C23C2/00; C23C2/04; C23C2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US851684A
Cited
US893932A
Cited
US853716A
Cited
US1746987A
Cited
US1729848A
Cited
US1789979A
Cited
US1799991A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-16 | 1952-05-17 | 1952-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-16 | 1956-05-17 | 1956-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-16 | 1960-05-17 | 1960-11-16 | $7700.00 | Window Closed / Lapsed |