US3194309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat exchange structure
Assignee: Olin Corp
•
Filing: 1959-10-12
•
Granted: 1965-07-13
•
Expires: 1979-10-12
Abstract
No abstract record available.
Inventors
- 👤 Richard F Adams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 06:49
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/02; B21D53/04; B21D53/045; F; F28; F28F; F28F3/00; F28F3/02; F28F3/025; F28F3/027; F28F2210/00; F28F2210/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4935; Y10T29/49366; Y10T29/49369; Y10T29/49371
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
IN A SHEET METAL UNIT, A VOLUMINOUS THIN-WALLED CAVITY OF LARGE EXPANSE DEFINED BETWEEN SUBSTANTIALLY SUPERPOSED PLANER OUTER WALL MEMBERS DISPOSED IN SPACED RELATIONSHIP TO EACH OTHER, AND A SINGLE INNER WALL MEMBER SUBDIVIDING SAID CAVITY AND WELDED TO SAID OUTER WALL MEMBERS ALONG SPACED MARGINAL PORTIONS OF THE ADJACENT FACES OF ALL SAID MEMBERS, SAID INNER WALL MEMBER BEING COEXTENSIVE WITH SAID OUTER WALL MEMBERS BETWEEN SAID MARGINAL PORTIONS AND DISPOSED BETWEEN AND PARTIALLY LYING IN A PLANE IN SPACED RELATIONSHIP TO SAID OUTER WALL MEMBERS WITH SAID INNERR WALL MEMBER HAVIN BETWEEN SAID MARGINAL PORTIONS A FIRST PORTION, A SECOND PORTION, AND A THIRD PORTION DISPOSED IN DIFFERENT PARTS OF SAID INNER WALL MEMBER, WITH ALL OF SAID FIRST PORTION COMPRISING A FIRST PERFORATION THROUGH SAID MEMBER AND A FIRST STRIP OF SAID INNER WALL MEMBER BOWED OUT THERE-
Claim 2
Dependent Claim
141 words
IN A SHEET METAL UNIT, A VOLUMINOUS THIN-WALLED CAVITY OF LARGE EXPANSE DEFINED BETWEEN SUBSTANTIALLY SUPERPOSED PLANER OUTER WALL MEMBERS DISPOSED IN SPACED RELATIONSHIP TO EACH OTHER, AND A SINGLE INNER WALL MEMBER SUBDIVIDING SAID CAVITY AND WELDED TO SAID OUTER WALL MEMBERS ALONG SPACED MARGINAL PORTIONS OF THE ADJACENT FACES OF ALL SAID MEMBERS, SAID INNER WALL MEMBER BEING COEXTENSIVE WITH SAID OUTER WALL MEMBERS BETWEEN SAID MARGINAL PORTIONS AND DISPOSED BETWEEN AND PARTIALLY LYING IN A PLANE IN SPACED RELATIONSHIP TO SAID OUTER WALL MEMBERS WITH SAID INNERR WALL MEMBER HAVIN BETWEEN SAID MARGINAL PORTIONS A FIRST PORTION, A SECOND PORTION, AND A THIRD PORTION DISPOSED IN DIFFERENT PARTS OF SAID INNER WALL MEMBER, WITH ALL OF SAID FIRST PORTION COMPRISING A FIRST PERFORATION THROUGH SAID MEMBER AND A FIRST STRIP OF SAID INNER WALL MEMBER BOWED OUT THERE-
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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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |