Patent US2419862A successfully refreshed from Google Patents.
US2419862A
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US
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Method of and apparatus for punching by transfer means
Assignee: Individual
•
Filing: 1944-04-29
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Granted: 1947-04-29
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Expires: 1964-04-29
Abstract
No abstract record available.
Inventors
- 👤 George F Wales
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:36
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49826; Y10T29/49833; Y10T83/00; Y10T83/04; Y10T83/0448; Y10T83/0524; Y10T83/0577; Y10T83/06; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/883; Y10T83/8855
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US50753A
Cited
US155347A
Cited
US190315A
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US195559A
Cited
US264629A
Cited
GB190113143A
Cited
US939185A
Cited
US915659A
Cited
CH78133A
Cited
US2300785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-28 | 1950-10-28 | 1951-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-28 | 1954-10-28 | 1955-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-28 | 1958-10-28 | 1959-04-29 | $7700.00 | Window Closed / Lapsed |