US2347372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic forming machine
Assignee: Davenport Machine Tool Co Inc
•
Filing: 1941-03-31
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Granted: 1944-04-25
•
Expires: 1961-03-31
Abstract
No abstract record available.
Inventors
- 👤 Frederick G Silva
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:31
CPC Classifications
B; B23; B23B; B23B7/00; B23B7/02; B23B7/04; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5152; Y10T29/5154; Y10T29/5159; Y10T29/5161; Y10T74/00; Y10T74/15; Y10T74/1503; Y10T74/1508; Y10T74/1511; Y10T74/1513
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) | 1947-04-25 | 1947-10-25 | 1948-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-04-25 | 1951-10-25 | 1952-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-04-25 | 1955-10-25 | 1956-04-25 | $7700.00 | Window Closed / Lapsed |