Patent US2265726A successfully refreshed from Google Patents.
US2265726A
Expired / Lapsed
US
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Sheet punching apparatus and method
Assignee: CONDENSER Corp OF AMERICA
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Filing: 1940-07-15
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Granted: 1941-12-09
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Expires: 1960-07-15
Abstract
No abstract record available.
Inventors
- 👤 Greenberg Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:40
CPC Classifications
H; H01; H01G; H01G13/00; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0495; Y10T83/0505; Y10T83/051; Y10T83/869; Y10T83/8821; Y10T83/8855
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) | 1944-12-08 | 1945-06-09 | 1945-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1948-12-08 | 1949-06-09 | 1949-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1952-12-08 | 1953-06-09 | 1953-12-09 | $7700.00 | Window Closed / Lapsed |