US3242628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended ceiling construction and runner therefor
Assignee: Chicago Metallic Co LLC
•
Filing: 1961-06-15
•
Granted: 1966-03-29
•
Expires: 1981-06-15
Abstract
No abstract record available.
Inventors
- 👤 Martin D Jahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:15
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A RUNNER FOR SUSPENDED CEILING SYSTEMS OF THE FIRE RESISTANT TYPE, COMPRISING A LONGITUDINALLY EXTENDING BODY PORTION TERMINATING AT ITS LOWER LONGITUDINAL EDGE IN TRANSVERSELY EXTENDING, OPPOSITELY DIRECTED FLANGE PORTIONS, THE BODY PORTION BEING CONSTRUCTED INTERMEDIATE ITS ENDS TO RECEIVE THE END OF A CROSS RUNNER, OF SIMILAR TRANSVERSE CROSS-SECTIONAL CONFIGURATION, EXTENDING TRANSVERSELY THERETO FOR CONNECTION THEREWITH, AND THE ENDS OF THE CROSS RUNNER FLANGED PORTIONS DISPOSED IN OPPOSITION TO THE ADJACENT FLANGE PORTION OF THE FIRST-MENTIONED RUNNER, SAID ADJACENT FLANGE PORTION HAVING OPENINGS THEREIN AT SUCH A POINT OF OPPOSITION TO THE END OF THE CROSS RUNNER AND
Claim 2
Dependent Claim
99 words
A RUNNER FOR SUSPENDED CEILING SYSTEMS OF THE FIRE RESISTANT TYPE, COMPRISING A LONGITUDINALLY EXTENDING BODY PORTION TERMINATING AT ITS LOWER LONGITUDINAL EDGE IN TRANSVERSELY EXTENDING, OPPOSITELY DIRECTED FLANGE PORTIONS, THE BODY PORTION BEING CONSTRUCTED INTERMEDIATE ITS ENDS TO RECEIVE THE END OF A CROSS RUNNER, OF SIMILAR TRANSVERSE CROSS-SECTIONAL CONFIGURATION, EXTENDING TRANSVERSELY THERETO FOR CONNECTION THEREWITH, AND THE ENDS OF THE CROSS RUNNER FLANGED PORTIONS DISPOSED IN OPPOSITION TO THE ADJACENT FLANGE PORTION OF THE FIRST-MENTIONED RUNNER, SAID ADJACENT FLANGE PORTION HAVING OPENINGS THEREIN AT SUCH A POINT OF OPPOSITION TO THE END OF THE CROSS RUNNER AND
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |