US3262303A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extruding metal tubes prom wire
Assignee: —
•
Filing: —
•
Granted: 1966-07-26
•
Expires: 1983-07-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:25
CPC Classifications
B; B21; B21C; B21C35/00; B21C23/00; B21C23/02; B21C23/04; B21C23/14; B21C23/20; B21C23/21; B21J; B21J1/00; B21J1/02; B21J1/025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD OF FORMING HOLLOW ARTICLES FROM A MATERIAL SUBJECT TO GRAIN GROWTH AGING COMPRISING SEQUENTIAL STEPS OF SYMMETRICALLY UPSETTING A CYLINDRICAL PIECE OF STOCK INCREASING ITS RADIUS AND DECREASING ITS LENGTH, THEREAFTER SOCKETING SAID STOCK A SUBSTANTIAL DISTANCE THERETHROUGH FORMING A BLIND PASSAGE ALONG THE CENTRAL AXIS THEREOF, THEREAFTER PUNCHING A SLUG FROM SAID STOCK FORMING A CENTRAL PASSAGE THROUGH SAID STOCK THEREBY LEAVING ONLY MATERIAL WHICH HAS BEEN RADIALLY DISPLACED, AND THEREAFTER SYMMETRICALLY EXTRUDING A HOLLOW ARTICLE, THE PERIOD OF TIME BETWEEN EACH STEP BEING SUFFICIENTLY SHORT TO PREVENT SUBSTANTIAL AGING OF SAID MATERIAL.
Claim 2
Independent Claim
96 words
A METHOD OF FORMING HOLLOW ARTICLES FROM A MATERIAL SUBJECT TO GRAIN GROWTH AGING COMPRISING SEQUENTIAL STEPS OF SYMMETRICALLY UPSETTING A CYLINDRICAL PIECE OF STOCK INCREASING ITS RADIUS AND DECREASING ITS LENGTH, THEREAFTER SOCKETING SAID STOCK A SUBSTANTIAL DISTANCE THERETHROUGH FORMING A BLIND PASSAGE ALONG THE CENTRAL AXIS THEREOF, THEREAFTER PUNCHING A SLUG FROM SAID STOCK FORMING A CENTRAL PASSAGE THROUGH SAID STOCK THEREBY LEAVING ONLY MATERIAL WHICH HAS BEEN RADIALLY DISPLACED, AND THEREAFTER SYMMETRICALLY EXTRUDING A HOLLOW ARTICLE, THE PERIOD OF TIME BETWEEN EACH STEP BEING SUFFICIENTLY SHORT TO PREVENT SUBSTANTIAL AGING OF SAID MATERIAL.
References Cited (Backward Citations)
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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) | 1969-07-25 | 1970-01-24 | 1970-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-25 | 1974-01-24 | 1974-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-25 | 1978-01-24 | 1978-07-26 | $7700.00 | Window Closed / Lapsed |