Patent US4499681A successfully refreshed from Google Patents.
US2749984A
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US
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Shear blade alignment and misalignment mechanism for cutting shears of the rotary type
Assignee: HALLDEN MACHINE Co
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Filing: 1953-12-11
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Granted: 1956-06-12
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Expires: 1973-12-11
Abstract
No abstract record available.
Inventors
- 👤 Karl W Hallden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:01
CPC Classifications
B; B23; B23D; B23D25/00; B23D25/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1956; Y10T74/19585; Y10T74/1959; Y10T83/00; Y10T83/465; Y10T83/4708; Y10T83/4711; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4836
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US79605A
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US1924160A
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US1969433A
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GB437029A
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US2274452A
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US2304770A
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DE814236C
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US2642938A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |