Patent US2544540A successfully refreshed from Google Patents.
US2544540A
Expired / Lapsed
US
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Underdrive punch press
Assignee: Individual
•
Filing: 1948-02-17
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Granted: 1951-03-06
•
Expires: 1968-02-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick K Maussnest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:30
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/0058; B30B1/00; B30B1/26; B30B1/28; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8742
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US465699A
Cited
US1417579A
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US1388374A
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GB389610A
Cited
US2085799A
Cited
US2243206A
Cited
US2321325A
Cited
US2310890A
Cited
US2406808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |