Patent US1521514A successfully refreshed from Google Patents.
US1521514A
Expired / Lapsed
US
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Art of shearing metal bars while in motion
Assignee: Siemens Industry Inc
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Filing: 1921-07-01
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Granted: 1924-12-30
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Expires: 1941-07-01
Abstract
No abstract record available.
Inventors
- 👤 Victor E Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:25
CPC Classifications
B; B23; B23D; B23D25/00; B23D25/02; B23D25/06; B23D33/00; B23D33/02; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0515; Y10T83/0519; Y10T83/465; Y10T83/4749; Y10T83/4751; Y10T83/4754
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) | 1927-12-30 | 1928-06-30 | 1928-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-12-30 | 1932-06-30 | 1932-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-12-30 | 1936-06-30 | 1936-12-30 | $7700.00 | Window Closed / Lapsed |