US3374597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rolled metal screen frame
Assignee: UNIVERSAL MOLDING CO
•
Filing: 1965-03-09
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Granted: 1968-03-26
•
Expires: 1985-03-09
Abstract
No abstract record available.
Inventors
- 👤 Gary L Whitener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:58
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A METAL SCREEN FRAME SECTION OR THE LIKE, A ROLLED TUBULAR BODY HAVING A SMOOTH EXTERNAL SURFACE, SAID BODY HAVING LATERALLY AND THENCE UPWARDLY EXTENDING FLANGES WHOSE EDGES TERMINATE IN LATERALLY SPACED RELATION TO SAID BODY TO DEFINE A SPLINE GROOVE, ONE FLANGE EDGE COMPRISIN AN OUTER EDGE PORTION ROLLED OVER THE OTHER EDGE, AND TERMINATING IN SAID OUTER EDGE PORTION ABOVE THE BOTTOM OF THE SPLINE GROOVE TO PROVIDE A SPLINE RETAINING SHOULDER AND A CONTINUOUS LOCKING GROOVE ROLLED LONGITUDINALLY INTO SAID FORST MENTIONED FLANGE EXTERIORLY OF THE SPLINE GROOVE AND UPWARDLY FROM THE BOTTOM OF THE SPLINE GROOVE RELATIVE TO SAID SHOULDER AND INWARDLY FROM SAID OTHER EDGE TO CLAMP THE ROLLED OVER FLANGE EDGE THEREOF TO SAID OTHER FLANGE, SAID FACE OF ONE FLANGE EDGE IN CONTACT WITH A FACE OF THE OTHER FLANGE EDGE BEING KNURLED ALONG THE CONTINUOUS LOCKING PORTION PROVIDED BY SAID CONTINUOUS LOCKING GROOVE.
Claim 2
Dependent Claim
152 words
IN A METAL SCREEN FRAME SECTION OR THE LIKE, A ROLLED TUBULAR BODY HAVING A SMOOTH EXTERNAL SURFACE, SAID BODY HAVING LATERALLY AND THENCE UPWARDLY EXTENDING FLANGES WHOSE EDGES TERMINATE IN LATERALLY SPACED RELATION TO SAID BODY TO DEFINE A SPLINE GROOVE, ONE FLANGE EDGE COMPRISIN AN OUTER EDGE PORTION ROLLED OVER THE OTHER EDGE, AND TERMINATING IN SAID OUTER EDGE PORTION ABOVE THE BOTTOM OF THE SPLINE GROOVE TO PROVIDE A SPLINE RETAINING SHOULDER AND A CONTINUOUS LOCKING GROOVE ROLLED LONGITUDINALLY INTO SAID FORST MENTIONED FLANGE EXTERIORLY OF THE SPLINE GROOVE AND UPWARDLY FROM THE BOTTOM OF THE SPLINE GROOVE RELATIVE TO SAID SHOULDER AND INWARDLY FROM SAID OTHER EDGE TO CLAMP THE ROLLED OVER FLANGE EDGE THEREOF TO SAID OTHER FLANGE, SAID FACE OF ONE FLANGE EDGE IN CONTACT WITH A FACE OF THE OTHER FLANGE EDGE BEING KNURLED ALONG THE CONTINUOUS LOCKING PORTION PROVIDED BY SAID CONTINUOUS LOCKING GROOVE.
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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) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |