Patent US1387343A successfully refreshed from Google Patents.
US1387343A
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Assignee: STANDARD STEEL WORKS Co
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Filing: 1920-12-06
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Granted: 1921-08-09
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Expires: 1940-12-06
Abstract
No abstract record available.
Inventors
- 👤 Samuel G Betz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:55
CPC Classifications
B; B23; B23B; B23B27/00; B23B27/14; B23B27/16; B23B27/1655; B23B27/06; B23B27/1625; B23B27/164; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1952; Y10T407/1962; Y10T407/22; Y10T407/2222; Y10T407/2238; Y10T407/224; Y10T407/2242; Y10T407/2272; Y10T407/2282
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) | 1924-08-08 | 1925-02-07 | 1925-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1928-08-08 | 1929-02-07 | 1929-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1932-08-08 | 1933-02-07 | 1933-08-09 | $7700.00 | Window Closed / Lapsed |