Patent US1744199A successfully refreshed from Google Patents.
US1744199A
Expired / Lapsed
US
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Method of forming connections
Assignee: Chicago Forging and Manufacturing Co
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Filing: 1928-05-31
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Granted: 1930-01-21
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Expires: 1948-05-31
Abstract
No abstract record available.
Inventors
- 👤 Melvin G Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:35
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/06; Y; Y10; Y10S; Y10S16/00; Y10S16/42; Y10S292/00; Y10S292/14; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49925; Y10T29/49927; Y10T29/49929
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) | 1933-01-20 | 1933-07-22 | 1934-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-01-20 | 1937-07-22 | 1938-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-01-20 | 1941-07-22 | 1942-01-21 | $7700.00 | Window Closed / Lapsed |