Patent US3323341A successfully refreshed from Google Patents.
US3323341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tube mill and method
Assignee: Intercole Bolling Corp
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Filing: 1963-06-28
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Granted: 1967-06-06
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Expires: 1983-06-28
Abstract
No abstract record available.
Inventors
- 👤 William J H Chang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:29
CPC Classifications
B; B21; B21D; B21D5/00; B21D5/06; B21D5/10; B21D5/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
58 words
THE METHOD OF ADJUSTING WORK CONTACTING ROLLERS IN A TUBE MILL TO ACCOMMODATE TUBES OF DIFFERENT FINISHED DIAMETERS AT ANY GIVEN PASS INCLUDING THE STEPS OF MOUNTING SAID WORK CONTACTING ROLLERS AND OF MOVING SUCH ROLLERS ALONG A SELECTED NUMBER OF INCLINED LINES OF A PENCIL OF LINES THROUGH A POINT IN A PLANE TRANSVERSELY OF SUCH MILL.
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) | 1970-06-05 | 1970-12-05 | 1971-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-05 | 1974-12-05 | 1975-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-05 | 1978-12-05 | 1979-06-06 | $7700.00 | Window Closed / Lapsed |