US3122044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal punching apparatus
Assignee: Individual
•
Filing: 1960-10-17
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Granted: 1964-02-25
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Expires: 1980-10-17
Abstract
No abstract record available.
Inventors
- 👤 Jack F Grosh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:51
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10T; Y10T83/00; Y10T83/869; Y10T83/8776; Y10T83/8785; Y10T83/8821; Y10T83/8867; Y10T83/929; Y10T83/9411; Y10T83/9423; Y10T83/9425; Y10T83/9457; Y10T83/9473; Y10T83/9483
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
155 words
METAL PUNCHING APPARATUS COMPRISING, (A) A STATIONARY TUBULAR SUPPORT CONTAINING A VERTICAL BORE, (B) A CYLINDRICAL BODY SLIDABLE VERTICALLY WITHIN SAID BORE ABOVE THE WORK METAL TO BE PUNCHED, (C) A PUNCH DISPLACEABLE DOWNWARDLY WITHIN SAID BODY AND OUT OF ITS LOWER END TO PENETRATE THE WORK METAL, (D) YIELDING MEANS RESISTING SAID DOWNWARD MOVEMENT OF THE PUNCH WITHIN THE BODY, (E) A VERTICALLY MOVABLE PUNCH DRIVING MEMBER, (F) A MANUALLY OPERABLE MEMBER ADAPTED TO MOVE SAID BODY VERTICALLY ABOVE THE WORK METAL, (G) MEANS RELEASABLY ASSOCIATING SAID MEMBER (F) WITH SAID BODY TO PERMIT UPWARD WITHDRAWAL OF THE BODY FROM THE SUPPORT BORE FOR REPLACEMENT BY A SIMILAR BODY CONTAINING A DIFFERENT SIZE PUNCH, (H) AND YIELDING MEANS ACTING INDEPENDENTLY OF SAID MEMBER (F) TO EXERT DOWNWARD THRUST ACTING TO DISPLACE SAID BODY DOWNWARDLY WITHIN SAID SUPPORT BORE AND RELEASABLY ASSOCIATED WITH THE BODY TO PERMIT WITHDRAWAL OF THE BODY FROM THE SUPPORT BORE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |