US3105299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Knock-out punch
Assignee: Individual
•
Filing: 1961-12-28
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Granted: 1963-10-01
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Expires: 1981-12-28
Abstract
No abstract record available.
Inventors
- 👤 Axel M Wirtanen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 07:02
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; B21D28/34; B21D28/343
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
MECHANISM FOR OPERATING COOPERATING PUNCH AND DIE MEMBERS, BOTH OF WHICH HAVE CENTER OPENINGS ONE OF WHICH IS THREADED, SAID MECHANISM COMPRISING A THREADED DRAW BOLT ADAPTED TO PASS FREELY THROUGH THE OPENING OF ONE OF SAID MEMBERS AND THREADEDLY ENGAGE THE THREADED OPENING OF THE OTHER OF SAID MEMBRS, A CAM FOR ENGAGING THE MEMBER THROUGH WHICH THE BOLT FREELY PASSES, MEANS FOR HINGEDLY MOUNTING SAID CAM ON SAID BOLT WHEREBY CAMMING MOVEMENT OF SAID CAM AGAINST SAID MEMBER FORCES SAID PUNCH AND DIE MEMBERS TOWARDS EACH OTHER, AND HANDLE MEANS FOR OPERATING SAID CAM.
Claim 2
Dependent Claim
96 words
MECHANISM FOR OPERATING COOPERATING PUNCH AND DIE MEMBERS, BOTH OF WHICH HAVE CENTER OPENINGS ONE OF WHICH IS THREADED, SAID MECHANISM COMPRISING A THREADED DRAW BOLT ADAPTED TO PASS FREELY THROUGH THE OPENING OF ONE OF SAID MEMBERS AND THREADEDLY ENGAGE THE THREADED OPENING OF THE OTHER OF SAID MEMBRS, A CAM FOR ENGAGING THE MEMBER THROUGH WHICH THE BOLT FREELY PASSES, MEANS FOR HINGEDLY MOUNTING SAID CAM ON SAID BOLT WHEREBY CAMMING MOVEMENT OF SAID CAM AGAINST SAID MEMBER FORCES SAID PUNCH AND DIE MEMBERS TOWARDS EACH OTHER, AND HANDLE MEANS FOR OPERATING SAID CAM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |