US2866428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sheet metal gauging and working machine
Assignee: DAHLSTROM MACHINE WORKS Inc
•
Filing: 1955-09-12
•
Granted: 1958-12-30
•
Expires: 1975-09-12
Abstract
No abstract record available.
Inventors
- 👤 Harry E Stanfield
- 👤 Ivar B Dahlstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:10
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/02; B21D43/021; B23; B23D; B23D25/00; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/54
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1919999A
Cited
US2183159A
Cited
US2165614A
Cited
US2603688A
Cited
US2633195A
Cited
US2635809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |