US3176807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interlocked panel structure
Assignee: Individual
•
Filing: 1952-12-09
•
Granted: 1965-04-06
•
Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Pavlecka John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:51
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/30; E04C2/40
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A STRUCTURE, TWO PANELS MEETING WITH EACH OTHER ALONG THEIR EDGES, STRINGERS EXTENDING ON SAID PANELS, EACH OF SAID STRINGERS HAVING A FIRST WALL AT AND ALONG A PLANE THROUGH SAID PANEL EDGES AND HAVING ANOTHER WALL APART FROM SAID FIRST WALL AND CONNECTED THEREWITH TO FORM A HOLLOW SECTION, REENTRANT MORTISE-AND-TENON FORMATIONS BORNE ON SAID FIRST WALL OF EACH STRINGER AND BEING COMPLEMENTAL WITH THE FORMATIONS ON THE OTHER STRINGER, SAID STRINGERS BEING JOINED RELATIVELY IMMOVABLY BY SAID FORMATIONS THEREOF IN A SLIDABLE ENGAGEMENT WITH EACH OTHER FOR HOLDING SAID PANELS TOGETHER AT SAID EDGES THEREOF AND FOR PROVIDING JOINTLY BY SAID HOLLOOW SECTION THEREOF A UNITARY STRESS MEMBER OF A SUBSTANTIAL HOLLOW SECTION FOR SAID PANELS.
Claim 2
Dependent Claim
119 words
IN A STRUCTURE, TWO PANELS MEETING WITH EACH OTHER ALONG THEIR EDGES, STRINGERS EXTENDING ON SAID PANELS, EACH OF SAID STRINGERS HAVING A FIRST WALL AT AND ALONG A PLANE THROUGH SAID PANEL EDGES AND HAVING ANOTHER WALL APART FROM SAID FIRST WALL AND CONNECTED THEREWITH TO FORM A HOLLOW SECTION, REENTRANT MORTISE-AND-TENON FORMATIONS BORNE ON SAID FIRST WALL OF EACH STRINGER AND BEING COMPLEMENTAL WITH THE FORMATIONS ON THE OTHER STRINGER, SAID STRINGERS BEING JOINED RELATIVELY IMMOVABLY BY SAID FORMATIONS THEREOF IN A SLIDABLE ENGAGEMENT WITH EACH OTHER FOR HOLDING SAID PANELS TOGETHER AT SAID EDGES THEREOF AND FOR PROVIDING JOINTLY BY SAID HOLLOOW SECTION THEREOF A UNITARY STRESS MEMBER OF A SUBSTANTIAL HOLLOW SECTION FOR SAID PANELS.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |