Patent US4949347A successfully refreshed from Google Patents.
Patent US3227022A successfully refreshed from Google Patents.
US3227022A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of metal punching and stripping and apparatus therefor
Assignee: Ajem Laboratories Inc
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Filing: 1960-09-14
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Granted: 1966-01-04
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Expires: 1980-09-14
Abstract
No abstract record available.
Inventors
- 👤 Dewey M Evans
- 👤 James A Whitehead
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:51
CPC Classifications
B; B21; B21D; B21D28/00; B21D28/24; Y; Y10; Y10T; Y10T83/00; Y10T83/869; Y10T83/8696; Y10T83/8699; Y10T83/8742; Y10T83/8743; Y10T83/8821; Y10T83/8835; Y10T83/8858; Y10T83/929; Y10T83/9457; Y10T83/9473; Y10T83/9476
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
APPARATUS FOR PUNCHING A HOLE IN MATERIAL WHEREBY A SLUG OF WASTE MATERIAL IS FORMED, SAID APPARATUS GENERALLY COMPRISING A PUNCH AND A MATING DIE, A PISTON FOR CARRYING SAID DIE, A PISTON CASING HAVING A CHAMBER THEREIN, A C-FRAME HAVING UPPER AND LOWER JAWS, A FRAME FOR MOUNTING SAID C-FRAME SLIDABLY THEREON, AND HYDRAULIC MEANS FOR ACTUATING THE C-FRAME AND THE PISTON, THE PUNCH BEING MOUNTED ON SAID UPPER ARM AND THE PISTON CASING BEING MOUNTED ON SAID LOWER ARM, THE PISTON BEING SLIDABLY MOUNTED IN SAID CASING AND THE DIE BEING FIXED ON THE UPPER END OF SAID PISTON WHEREBY THE DIE AND THE PUNCH ARE IN OPPOSED ALIGNED RELATIONSHIP, THE LOWER END OF SAID PISTON EXTENDING THROUGH SAID CASING AND AWAY FROM THE PUNCH, AND AN ADJUSTABLE STOP MECHANISM NEAR SAID LOWER END OF THE PISTON FOR LIMITING THE EXTENT OF DOWNWARD TRAVEL OF THE PISTON AWAY FROM THE PUNCH.
Claim 2
Dependent Claim
153 words
APPARATUS FOR PUNCHING A HOLE IN MATERIAL WHEREBY A SLUG OF WASTE MATERIAL IS FORMED, SAID APPARATUS GENERALLY COMPRISING A PUNCH AND A MATING DIE, A PISTON FOR CARRYING SAID DIE, A PISTON CASING HAVING A CHAMBER THEREIN, A C-FRAME HAVING UPPER AND LOWER JAWS, A FRAME FOR MOUNTING SAID C-FRAME SLIDABLY THEREON, AND HYDRAULIC MEANS FOR ACTUATING THE C-FRAME AND THE PISTON, THE PUNCH BEING MOUNTED ON SAID UPPER ARM AND THE PISTON CASING BEING MOUNTED ON SAID LOWER ARM, THE PISTON BEING SLIDABLY MOUNTED IN SAID CASING AND THE DIE BEING FIXED ON THE UPPER END OF SAID PISTON WHEREBY THE DIE AND THE PUNCH ARE IN OPPOSED ALIGNED RELATIONSHIP, THE LOWER END OF SAID PISTON EXTENDING THROUGH SAID CASING AND AWAY FROM THE PUNCH, AND AN ADJUSTABLE STOP MECHANISM NEAR SAID LOWER END OF THE PISTON FOR LIMITING THE EXTENT OF DOWNWARD TRAVEL OF THE PISTON AWAY FROM THE PUNCH.
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |