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US3222769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making strip structures
Assignee: BACKSTAY WELT CO Inc
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Filing: 1961-12-22
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Granted: 1965-12-14
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Expires: 1981-12-22
Abstract
No abstract record available.
Inventors
- 👤 Plae George R Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:26
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/74; B60; B60J; B60J10/00; B60J10/15; B60J10/18; B60J10/30; B60J10/32; B60J10/33; B60J10/70; B60J10/74; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49789; Y10T29/4979; Y10T29/4998; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24198
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
THE METHOD OF MAKING A GENERALLY CHANNEL-SHAPED STRIP STRUCTURE FOR EMBRACING ENGAGEMENT WITH AND CLAMPING RETENTION OF AN EDGE FLANGE OR OTHER SUPPORT, SAID METHOD COMPRISING THE STEP OF TRANSVERSELY SLOTTING A ONE PIECE SHEET METAL CORE STRIP OF RESILIEN CHARACTER TO THEREBY PROVIDE IT WITH A SERIES OF LONGITUDINALLY DISPOSED, TANSVERSELY EXTENDING CORE ELEMENTS CONNECTED INTERMEDIATE THEIR ENDS BY FRANGIBLE MEANS, COMPLETELY ENCLOSING SAID CORE STRIP IN A FLEXIBLE COVERING, AND BREAKING SAID FRANGIBLE CONNECTING MEANS WHILE THE CORE STRIP IS IN ITS COVERING TO THEREBY DISCONNECT SAID TRANSVERSELY DISPOSED CORE ELEMENTS FOR INCREASED CORE FLEXIBILITY.
Claim 2
Independent Claim
97 words
THE METHOD OF MAKING A GENERALLY CHANNEL-SHAPED STRIP STRUCTURE FOR EMBRACING ENGAGEMENT WITH AND CLAMPING RETENTION OF AN EDGE FLANGE OR OTHER SUPPORT, SAID METHOD COMPRISING THE STEP OF TRANSVERSELY SLOTTING A ONE PIECE SHEET METAL CORE STRIP OF RESILIEN CHARACTER TO THEREBY PROVIDE IT WITH A SERIES OF LONGITUDINALLY DISPOSED, TANSVERSELY EXTENDING CORE ELEMENTS CONNECTED INTERMEDIATE THEIR ENDS BY FRANGIBLE MEANS, COMPLETELY ENCLOSING SAID CORE STRIP IN A FLEXIBLE COVERING, AND BREAKING SAID FRANGIBLE CONNECTING MEANS WHILE THE CORE STRIP IS IN ITS COVERING TO THEREBY DISCONNECT SAID TRANSVERSELY DISPOSED CORE ELEMENTS FOR INCREASED CORE FLEXIBILITY.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |