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US1661448A
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Nonseizing article of aluminum and method of producing the same
Assignee: Alcoa Corp
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Filing: 1923-04-24
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Granted: 1928-03-06
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Expires: 1943-04-24
Abstract
No abstract record available.
Inventors
- 👤 Cyril S Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:48
CPC Classifications
F; F16; F16B; F16B33/00; F16B33/06; F16K; F16K27/00; F16K27/06; F16K27/062; Y; Y10; Y10S; Y10S384/00; Y10S384/90; Y10S384/913; Y10S411/00; Y10S411/90; Y10S411/914; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49702; Y10T29/49709
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) | 1931-03-06 | 1931-09-05 | 1932-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1935-03-06 | 1935-09-05 | 1936-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1939-03-06 | 1939-09-05 | 1940-03-06 | $7700.00 | Window Closed / Lapsed |