US3218773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building panel
Assignee: Individual
•
Filing: 1961-07-17
•
Granted: 1965-11-23
•
Expires: 1981-07-17
Abstract
No abstract record available.
Inventors
- 👤 William C Heirich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:16
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/32; E04C2/322
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
158 words
IN A BUILDING OF THE CLASS DESCRIBED INCLUDING A ROOF AND AT LEAST ONE VERTICAL WALL, SAID ROOF AND WALL EACH COMPRISING A PLURALITY OF IDENTICAL U-SHAPED PANEL ELEMENTS ARRANGED IN OVERLAPPING PARALLEL RELATION, EACH SUCH PANEL ELEMENT COMPRISING A GENERALLY FLAT BOTTOM PORTION, A FIRST UPSTANDING WEB ELEMENT EXTENDING ALONG ONE SIDE OF SAID BOTTOM PORTION, SAID FIRST UPSTANDING WEB ELEMENT TERMINATING IN A FIRST FLANGE EXTENDING OUTWARDLY FROM AND LYING IN A PLANE PARALLEL TO SAID BOTTOM PORTION, A SECOND UPSTANDING WEB ELEMENT EXTENDING ALONG THE OTHER SIDE OF SAID BOTTOM PORTION AND TERMINATING AT ITS UPPER EXTREMITY IN AN OUTWARDLY OPENING GROOVE RECEIVING THE EDGE OF THE OUTWARDLY EXTENDING SAID FIRST FLANGE OF AN ADJACENT PARALLEL PANEL ELEMENT, THE EDGE OF SAID GROVE REMOTE FROM SAID SECOND UPSTANDING WEB ELEMENT EXTENDING OUTWARDLY FROM SAID BOTTOM PORTION TO FORM A SECOND FLANGE PORTION OVERLYING AND SECURED IN FACE TO FACE CONTACT WITH SAID FIRST FLANGE ON
Claim 2
Dependent Claim
158 words
IN A BUILDING OF THE CLASS DESCRIBED INCLUDING A ROOF AND AT LEAST ONE VERTICAL WALL, SAID ROOF AND WALL EACH COMPRISING A PLURALITY OF IDENTICAL U-SHAPED PANEL ELEMENTS ARRANGED IN OVERLAPPING PARALLEL RELATION, EACH SUCH PANEL ELEMENT COMPRISING A GENERALLY FLAT BOTTOM PORTION, A FIRST UPSTANDING WEB ELEMENT EXTENDING ALONG ONE SIDE OF SAID BOTTOM PORTION, SAID FIRST UPSTANDING WEB ELEMENT TERMINATING IN A FIRST FLANGE EXTENDING OUTWARDLY FROM AND LYING IN A PLANE PARALLEL TO SAID BOTTOM PORTION, A SECOND UPSTANDING WEB ELEMENT EXTENDING ALONG THE OTHER SIDE OF SAID BOTTOM PORTION AND TERMINATING AT ITS UPPER EXTREMITY IN AN OUTWARDLY OPENING GROOVE RECEIVING THE EDGE OF THE OUTWARDLY EXTENDING SAID FIRST FLANGE OF AN ADJACENT PARALLEL PANEL ELEMENT, THE EDGE OF SAID GROVE REMOTE FROM SAID SECOND UPSTANDING WEB ELEMENT EXTENDING OUTWARDLY FROM SAID BOTTOM PORTION TO FORM A SECOND FLANGE PORTION OVERLYING AND SECURED IN FACE TO FACE CONTACT WITH SAID FIRST FLANGE ON
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |