US3381438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reusable wall system
Assignee: Clestra SA
•
Filing: 1963-12-12
•
Granted: 1968-05-07
•
Expires: 1983-12-12
Abstract
No abstract record available.
Inventors
- 👤 John A Bohnsack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:51
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/7407; E04B2/7409; E04B2/7411; E04B2/76; E04B2/78; E04B2/7854
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
IN COMBINATION, A POST CONSTRUCTION FOR INTERIOR PARTITION SYSTEMS COMPRISING A VERTICAL, AND A PAIR OF VERTICALLY EXTENDING ALLOCHIRAL J-SHAPED LATCHING PROJECTIONS EXTENDING LATERALLY FROM SAID VERTICAL; PANELS EACH COMPRISING AN INSULATING CORE, FRONT AND BACK FACE SHEETS BONDED TO SAID CORE, SAID SHEETS EXTENDING BEYOND THE EDGES OF SAID CORE AND COOPERATING TO FORM VERTICALLY EXTENDING LATCHING EDGE CHANNELS COEXTENSIVE WITH SAID PROJECTIONS, THE ADJACENT EDGE CHANNELS OF SAID PANELS BEING LATCHED TO ONE PROJECTION OF EACH PAIR AND THUS SECURED TO SAID POST CONSTRUCTION.
Claim 2
Dependent Claim
86 words
IN COMBINATION, A POST CONSTRUCTION FOR INTERIOR PARTITION SYSTEMS COMPRISING A VERTICAL, AND A PAIR OF VERTICALLY EXTENDING ALLOCHIRAL J-SHAPED LATCHING PROJECTIONS EXTENDING LATERALLY FROM SAID VERTICAL; PANELS EACH COMPRISING AN INSULATING CORE, FRONT AND BACK FACE SHEETS BONDED TO SAID CORE, SAID SHEETS EXTENDING BEYOND THE EDGES OF SAID CORE AND COOPERATING TO FORM VERTICALLY EXTENDING LATCHING EDGE CHANNELS COEXTENSIVE WITH SAID PROJECTIONS, THE ADJACENT EDGE CHANNELS OF SAID PANELS BEING LATCHED TO ONE PROJECTION OF EACH PAIR AND THUS SECURED TO SAID POST CONSTRUCTION.
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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) | 1971-05-07 | 1971-11-06 | 1972-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-07 | 1975-11-06 | 1976-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-07 | 1979-11-06 | 1980-05-07 | $7700.00 | Window Closed / Lapsed |