Patent US3247583A successfully refreshed from Google Patents.
US3247583A
Expired / Lapsed
US
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Production of externally finned sheet stock
Assignee: Continental Can Co Inc
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Filing: 1962-03-21
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Granted: 1966-04-26
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Expires: 1982-03-21
Abstract
No abstract record available.
Inventors
- 👤 Hansson Ants
- 👤 Robert M Brick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:20
CPC Classifications
B; B21; B21J; B21J5/00; B21J5/06; B21J5/068; B21D; B21D53/00; B21D53/02; B21D53/04; B32; B32B; B32B15/00; B32B15/04; B32B15/043; B32B15/20; B32B3/00; B32B3/26; B32B37/00; B32B37/06; B32B37/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
THE METHOD OF MAKING A STRUCTURE HAVING PROJECTING INTEGRAL FINS, WHICH COMPRISES PLACING AT LEAST TWO BODIES IN SURFACE-TO-SURFACE CONTACT, ONE OF SAID BODIES HAVING DISCONTINUITIES IN ITS EXPOSED SURFACE, APPLYING A COATING OF ANTI-WELD SUBSTANCE TO SAID EXPOSED SURFACE OF SAID ONE BODY, THEN WELDING THE BODIES TOGETHER UNDER HEAT AND PRESSURE AND ROLLING WHEREBY THE MATERIAL BETWEEN THE DISCONTINUITIES FORMS SURFACES SCALES ON THE SAID ONE BODY, AND LIFTING THE SCALES WITH BENDING OF THEIR ROOTS AND THEREBY FORMING INTEGRAL FINS EXTENDING FROM THE ROLL-REDUCED AND WELDED BODIES.
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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) | 1969-04-25 | 1969-10-25 | 1970-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-25 | 1973-10-25 | 1974-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-25 | 1977-10-25 | 1978-04-26 | $7700.00 | Window Closed / Lapsed |