US2536376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Toolholder
Assignee: Greenfield Tap & Die Corp
•
Filing: 1947-02-05
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Granted: 1951-01-02
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Expires: 1967-02-05
Abstract
No abstract record available.
Inventors
- 👤 Earl R Koonz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:07
CPC Classifications
B; B23; B23B; B23B31/00; B23B31/02; B23B31/08; B23B31/10; B23B31/12; B23B31/20; B23B31/201; B23B31/2012; B23G; B23G5/00; B23G5/08; B23G5/10; B23G5/106; Y; Y10; Y10T; Y10T279/00; Y10T279/16; Y10T279/17; Y10T279/17128; Y10T279/17136; Y10T279/17153; Y10T279/17863; Y10T279/17871; Y10T279/17881; Y10T408/00; Y10T408/83; Y10T408/85; Y10T408/858; Y10T408/8588; Y10T408/94; Y10T408/95; Y10T408/953
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-01 | 1954-07-03 | 1955-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-01 | 1958-07-03 | 1959-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-01 | 1962-07-03 | 1963-01-02 | $7700.00 | Window Closed / Lapsed |