Patent US3852762A successfully refreshed from Google Patents.
Patent US3081705A successfully refreshed from Google Patents.
US3081705A
Expired / Lapsed
US
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Articles having laminated walls
Assignee: Studebaker Corp
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Filing: 1958-05-09
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Granted: 1963-03-19
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Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
- 👤 Elmer P Warnken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:34
CPC Classifications
F; F42; F42B; F42B10/00; F42B10/32; F42B10/38; F42B10/42; F42B10/46; Y; Y10; Y10S; Y10S60/00; Y10S60/909; Y10T; Y10T29/00; Y10T29/49; Y10T29/49346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
84 words
A LAMINATED ANNULAR WALL HAVING A FACE FOR ENGAGEMENT BY FLUID FLOW, SAID WALL COMPRISING AN ELONGATED RESIN-IMPREGNATED FLAT FABRIC STRIP FORMING A PLURALITY OF CONVOLUTIONS ARRANGED IN FACE-TO-FACE, ALIGNED, PARALLEL, OVERLAPPING RELATION WITH EACH CONVOLUTION OF THE STRIP EXTENDING WIDTHWISE OF THE WALL, A MINOR PORTION OF ONE FACE OF EACH CONVOLUTION BEING EXPOSED ALONG ONE EDGE THEREOF AT SAID WALL FACE FOR TRAILING CONTACT WITH FLUID FLOW AND WITH A MAJOR PORTION OF SAID CONVULUTION FACE OVERLAPPED BY AN ADJACENT UPSTREAM CONVOLUTION.
Claim 2
Dependent Claim
84 words
A LAMINATED ANNULAR WALL HAVING A FACE FOR ENGAGEMENT BY FLUID FLOW, SAID WALL COMPRISING AN ELONGATED RESIN-IMPREGNATED FLAT FABRIC STRIP FORMING A PLURALITY OF CONVOLUTIONS ARRANGED IN FACE-TO-FACE, ALIGNED, PARALLEL, OVERLAPPING RELATION WITH EACH CONVOLUTION OF THE STRIP EXTENDING WIDTHWISE OF THE WALL, A MINOR PORTION OF ONE FACE OF EACH CONVOLUTION BEING EXPOSED ALONG ONE EDGE THEREOF AT SAID WALL FACE FOR TRAILING CONTACT WITH FLUID FLOW AND WITH A MAJOR PORTION OF SAID CONVULUTION FACE OVERLAPPED BY AN ADJACENT UPSTREAM CONVOLUTION.
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) | 1966-03-18 | 1966-09-17 | 1967-03-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-18 | 1970-09-17 | 1971-03-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-18 | 1974-09-17 | 1975-03-19 | $7700.00 | Window Closed / Lapsed |