US3224081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a shelf
Assignee: Cyprus Amax Minerals Co
•
Filing: 1962-08-20
•
Granted: 1965-12-21
•
Expires: 1982-08-20
Abstract
No abstract record available.
Inventors
- 👤 John H Richter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:16
CPC Classifications
F; F25; F25D; F25D25/00; F25D25/02; F25D2325/00; F25D2325/023; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49616; Y10T29/4962
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
THE METHOD OF FORMING A REFRIGERATOR SHELF AND THE LIKE COMPRISING THE STEPS OF FORMING AN ELONGATED METAL BILLET TO A PREDETERMINED SIZE; CONFINING THE BILLET IN THE CHAMBER OF AN IMPACT EXTRUSION PRESS WITH A DIE COMMUNICATING WITH THE CHAMBER AND PROVIDED WITH A PLURALITY OF DIE CAVITIES FOR FORMING THE WIRES OF A SHELF AND AN IMPACT RAM AT OPPOSITE ENDS THEREOF; MOVING THE DIE AND RAM RELATIVELY TOWARD EACH OTHER WITH SUFFICIENT FORCE TO EFFECT IMPACT EXTRUSION OF A PORTION OF THE MATERIAL OF
Claim 2
Independent Claim
87 words
THE METHOD OF FORMING A REFRIGERATOR SHELF AND THE LIKE COMPRISING THE STEPS OF FORMING AN ELONGATED METAL BILLET TO A PREDETERMINED SIZE; CONFINING THE BILLET IN THE CHAMBER OF AN IMPACT EXTRUSION PRESS WITH A DIE COMMUNICATING WITH THE CHAMBER AND PROVIDED WITH A PLURALITY OF DIE CAVITIES FOR FORMING THE WIRES OF A SHELF AND AN IMPACT RAM AT OPPOSITE ENDS THEREOF; MOVING THE DIE AND RAM RELATIVELY TOWARD EACH OTHER WITH SUFFICIENT FORCE TO EFFECT IMPACT EXTRUSION OF A PORTION OF THE MATERIAL OF
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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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |