US3609933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spaced panel wall construction
Assignee: Chicago Metallic Co LLC
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Filing: 1968-11-22
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Granted: 1971-10-05
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Expires: 1988-11-22
Abstract
Abstract AN ASSEMBLY FOR MOUNTING SPACED PARALLEL WALL PANELS BY STUDS THAT SPACE THE PANELS FROM ONE ANOTHER AND BY BATTENS THAT RELEASABLY CLAMP THE SECTIONS OF THE PANELS TO THE STUDS. EACH STUD IS FORMED OF A SINGLE PIECE OF SHEET METAL FOLDED SO AS TO HAVE A CENTRAL WEB AND END FLANGES AND LIES ENTIRELY BETWEEN THE PANELS WITHOUT PROJECTING BETWEEN THE SECTIONS OF EITHER PANEL. EACH BATTEN IS ALSO FORMED OF FOLDED SHEET METAL, OVERLIES ADJACENT PANEL SECTIONS AT THE OUTSIDE, PROJECTS BETWEEN THE AD- JACENT PANELS, AND IS RELEASABLY ENGAGED BY A STUD AT A RECESS THEREIN FORMED IN A FLANGE OF THE STUD.
Inventors
- 👤 Martin D Jahn
- 👤 Reinhardt H Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:25
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/56; E04B2/58; E04B2/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |