Patent US1858733A successfully refreshed from Google Patents.
US1858733A
Expired / Lapsed
US
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Tap forming machine
Assignee: Individual
•
Filing: 1927-08-31
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Granted: 1932-05-17
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Expires: 1947-08-31
Abstract
No abstract record available.
Inventors
- 👤 Flachbart Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:51
CPC Classifications
B; B21; B21J; B21J7/00; B21J7/02; B21J7/14; B21J7/16; B21K; B21K1/00; B21K1/44; B21K1/54; B21K1/56; B21K5/00; B21K5/02
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) | 1935-05-17 | 1935-11-16 | 1936-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-05-17 | 1939-11-16 | 1940-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-05-17 | 1943-11-16 | 1944-05-17 | $7700.00 | Window Closed / Lapsed |