Patent US1902841A successfully refreshed from Google Patents.
US1902841A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming nut bar for the manufacture of grip nuts and apparatus for performing the same
Assignee: VULCAN STEEL PRODUCTS Co
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Filing: 1928-07-30
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Granted: 1933-03-28
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Expires: 1948-07-30
Abstract
No abstract record available.
Inventors
- 👤 George C Easter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:51
CPC Classifications
B; B21; B21B; B21B1/00; B21B1/08; B21B1/0805; B21B1/16; B21B1/166; B21B1/09; B21B1/095; B21B1/38
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) | 1936-03-27 | 1936-09-26 | 1937-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-27 | 1940-09-26 | 1941-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-27 | 1944-09-26 | 1945-03-28 | $7700.00 | Window Closed / Lapsed |