US3081537A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and tool for fastening roof deck
Assignee: Acme Steel Co
•
Filing: 1959-07-14
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Granted: 1963-03-19
•
Expires: 1979-07-14
Abstract
No abstract record available.
Inventors
- 👤 Albert F Novy
- 👤 Bestor P Coleman
- 👤 Allen B Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:06
CPC Classifications
E; E04; E04D; E04D15/00; E04D15/04; Y; Y10; Y10S; Y10S52/00; Y10S52/01; Y10T; Y10T29/00; Y10T29/34; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
THE METHOD OF PROVIDING AN INTERLOCKING CONNECTION BETWEEN A SHEET METAL PANEL AND A MEMBER HAVING TWO INWARDLY DIRECTED SPACED FLANGES EXTENDING TOWARD EACH OTHER COMPRISING, SHEARING TWO OPPOSITELY DISPOSED TABS FROM THE SHEET METAL PANEL IN A REGION BETWEEN THE LOCATION OF THE TWO FLANGES WHEN THE PANEL IS POSITIONED AGAINST THE FLANGED MEMBER TO SIMULTANEOUSLY IMPART A TRANSVERSE CROSS SECTIONAL SHAPE TO EACH TAB IN THE NATURE OF A CENTRALLY CONCAVE CURVED PORTION CONNECTED AT ITS EDGES BETWEEN TWO SPACED ALIGNED RECTILINEAR PORTIONS BY TWO CORNERS CURVED REVERSELY OF SAID CURVED PORTION, SAID CURVED PORTION AND TWO CORNERS PROVIDING LONGITUDINAL RIGIDITY ALONG THREE DIFFERENT LONGITUDINAL REGIONS OF EACH TAB TO THEREBY INCREASE RESISTANCE TO LONGITUDINAL BENDING OF THE TABS, AND THEN FURTHER SHEARING AND CURLING THE TABS LONGITUDINALLY ABOUT THE FLANGES.
Claim 2
Independent Claim
133 words
THE METHOD OF PROVIDING AN INTERLOCKING CONNECTION BETWEEN A SHEET METAL PANEL AND A MEMBER HAVING TWO INWARDLY DIRECTED SPACED FLANGES EXTENDING TOWARD EACH OTHER COMPRISING, SHEARING TWO OPPOSITELY DISPOSED TABS FROM THE SHEET METAL PANEL IN A REGION BETWEEN THE LOCATION OF THE TWO FLANGES WHEN THE PANEL IS POSITIONED AGAINST THE FLANGED MEMBER TO SIMULTANEOUSLY IMPART A TRANSVERSE CROSS SECTIONAL SHAPE TO EACH TAB IN THE NATURE OF A CENTRALLY CONCAVE CURVED PORTION CONNECTED AT ITS EDGES BETWEEN TWO SPACED ALIGNED RECTILINEAR PORTIONS BY TWO CORNERS CURVED REVERSELY OF SAID CURVED PORTION, SAID CURVED PORTION AND TWO CORNERS PROVIDING LONGITUDINAL RIGIDITY ALONG THREE DIFFERENT LONGITUDINAL REGIONS OF EACH TAB TO THEREBY INCREASE RESISTANCE TO LONGITUDINAL BENDING OF THE TABS, AND THEN FURTHER SHEARING AND CURLING THE TABS LONGITUDINALLY ABOUT THE FLANGES.
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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) | 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 |