US2144540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire cutting apparatus
Assignee: BOERING SPECIALTY Co
•
Filing: 1937-05-05
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Granted: 1939-01-17
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Expires: 1957-05-05
Abstract
No abstract record available.
Inventors
- 👤 Lindgren Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:53
CPC Classifications
B; B21; B21F; B21F11/00; Y; Y10; Y10T; Y10T83/00; Y10T83/748; Y10T83/7593; Y10T83/76; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8841; Y10T83/885
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) | 1942-01-16 | 1942-07-18 | 1943-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-01-16 | 1946-07-18 | 1947-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-01-16 | 1950-07-18 | 1951-01-17 | $7700.00 | Window Closed / Lapsed |