US2456140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable chamfering device
Assignee: Jack & Heintz Prec Ind Inc
•
Filing: 1944-01-17
•
Granted: 1948-12-14
•
Expires: 1964-01-17
Abstract
No abstract record available.
Inventors
- 👤 Siegfried E Mueller
- 👤 Anderson Gordon Victor
- 👤 Dacas Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:17
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/10; B23B51/106; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5178; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/859; Y10T82/00; Y10T82/14; Y10T82/25; Y10T82/2531; Y10T82/2541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US494737A
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US693346A
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US738854A
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US831974A
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US1000011A
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US1289674A
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US1604114A
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US1678924A
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US2257503A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-12-14 | 1952-06-14 | 1952-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-12-14 | 1956-06-14 | 1956-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-12-14 | 1960-06-14 | 1960-12-14 | $7700.00 | Window Closed / Lapsed |