US2114626A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for threading pieces
Assignee: Davenport Machine Tool Co Inc
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Filing: 1935-12-30
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Granted: 1938-04-19
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Expires: 1955-12-30
Abstract
No abstract record available.
Inventors
- 👤 Earl W Brinkman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:17
CPC Classifications
B; B23; B23G; B23G1/00; B23G1/02; B23G1/04; Y; Y10; Y10T; Y10T408/00; Y10T408/03; Y10T408/34; Y10T408/352; Y10T408/36; Y10T408/38; Y10T408/3806; Y10T408/3809; Y10T408/381; Y10T408/83; Y10T408/85; Y10T408/852
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) | 1941-04-18 | 1941-10-18 | 1942-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-04-18 | 1945-10-18 | 1946-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-04-18 | 1949-10-18 | 1950-04-19 | $7700.00 | Window Closed / Lapsed |