US3253371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sectioned facing
Assignee: LUDWIG HONOLD Manufacturing CO
•
Filing: 1962-01-24
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Granted: 1966-05-31
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Expires: 1982-01-24
Abstract
No abstract record available.
Inventors
- 👤 Honold Ludwig
- 👤 Jr Frederick N Feer
- 👤 Frederick J Mack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:53
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/08; E04B; E04B1/00; E04B1/02; E04B1/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
122 words
IN A ROOF CONSTRUCTION, A PLURALITY OF ROOF PANELS FORMING AN ARCH, EACH OF WHICH IS MADE UP OF METALLIC MEMBERS HAVING SNAP-IN INTERCONNECTIONS, END PLATES ON EACH PANEL AT THE ADJOINING ENDS, THE END PLATES HAVING WEBS WHICH EXTEND ACROSS THE END OF THE EXTRUSIONS AND DOWN BENEATH THE PANELS, THE EXTRUSIONS MAKING UP THE PANELS HAVING IN SOME CASES RELATIVELY SHALLOW FLANGES AND IN OTHER CASES RELATIVELY DEEPER FLANGES EXTENDING REMOTE FROM THE SURFACE OF THE ROOF, RECESSES IN THE WEB OF THE END PLATES ADJACENT THE DEEPER FLANGES OF THE EXTRUSIONS AND CONNECTORS EXTENDING FROM ONE PANEL TO ANOTHER FASTENED TO THE DEEPER FLANGES OF THE EXTRUSIONS AND PASSING THROUGH THE RECESSES IN THE WEB OF THE END PLATES.
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Cited
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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) | 1969-05-30 | 1969-11-29 | 1970-05-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-30 | 1973-11-29 | 1974-05-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-30 | 1977-11-29 | 1978-05-31 | $7700.00 | Window Closed / Lapsed |