Patent US2670795A successfully refreshed from Google Patents.
US2670795A
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Punch device for cutting irregular holes
Assignee: Individual
•
Filing: 1948-08-06
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Granted: 1954-03-02
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Expires: 1968-08-06
Abstract
No abstract record available.
Inventors
- 👤 Griep John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:05
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/28; Y; Y10; Y10T; Y10T408/00; Y10T408/55; Y10T408/561; Y10T408/5623; Y10T408/56245; Y10T408/96; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/384; Y10T83/387; Y10T83/392; Y10T83/869; Y10T83/8736; Y10T83/8737
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US547880A
Cited
US1964030A
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US2165396A
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US2243614A
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US2296087A
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US2389909A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |