US2557069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Machine tool for taper threading
Assignee: Landis Machine Co
•
Filing: 1945-06-04
•
Granted: 1951-06-19
•
Expires: 1965-06-04
Abstract
No abstract record available.
Inventors
- 👤 Harry L Berkey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:18
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/16; Y; Y10; Y10S; Y10S29/00; Y10S29/066; Y10T; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US225305A
Cited
US397664A
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USRE20974E
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US1669911A
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US1881111A
Cited
US2054028A
Cited
US2054029A
Cited
US2186061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-18 | 1954-12-18 | 1955-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-18 | 1958-12-18 | 1959-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-18 | 1962-12-18 | 1963-06-19 | $7700.00 | Window Closed / Lapsed |