Patent US3609845A successfully refreshed from Google Patents.
US3609845A
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US
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Crimping tool
Assignee: ARMCO ATLANTIC Inc A CORP OF DE
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Filing: 1969-12-29
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Granted: 1971-10-05
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Expires: 1989-12-29
Abstract
Abstract A TOOL FOR CONTINUOUSLY FOLLOWING AT LEAST TWO ADJACENT RIB JOINTS FORMED BY OVERLAPPING RIBS OF ADJACENT STEEL PANELS FROM END TO END SO THAT SAID RIBS MAY BE DEFORMED OR CRIMPED CONTINUOUSLY OR INTERMITTENTLY AS DESIRED, BY PIVOTING FORMING ROLLS, TO EFFECT CONTINUOUS ENGAGEMENT, COMPLETE INTERLOCKING AND RESISTANCE TO DISENGAGEMENT OF ADJACENT PANELS.
Inventors
- 👤 Donald M Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:23
CPC Classifications
B; B21; B21D; B21D39/00; B21D39/02; Y; Y10; Y10T; Y10T29/00; Y10T29/53; Y10T29/53709; Y10T29/53983
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |