US2429938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple unit machine tool
Assignee: Greenlee Brothers and Co
•
Filing: 1941-10-04
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Granted: 1947-10-28
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Expires: 1961-10-04
Abstract
No abstract record available.
Inventors
- 👤 Judson H Mansfield
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:16
CPC Classifications
B; B23; B23Q; B23Q39/00; B23Q39/04; B23Q39/042; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/513; Y10T29/5179; Y10T29/5196; Y10T29/53; Y10T29/53004; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/308792
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1975005A
Cited
US2118024A
Cited
US1975007A
Cited
US2118025A
Cited
US2029335A
Cited
US2053400A
Cited
US2255739A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-27 | 1951-04-28 | 1951-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-27 | 1955-04-28 | 1955-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-27 | 1959-04-28 | 1959-10-28 | $7700.00 | Window Closed / Lapsed |