US2585720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Punching apparatus
Assignee: CARL HENDRICKSON
•
Filing: 1948-05-04
•
Granted: 1952-02-12
•
Expires: 1968-05-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:23
CPC Classifications
G; G06; G06K; G06K21/00; G06K21/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US599560A
Cited
US1245500A
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US1863097A
Cited
US1778155A
Cited
US2062155A
Cited
US2164698A
Cited
US2419781A
Cited
US2521372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |