US3085666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceiling construction
Assignee: Eastern Products Corp
•
Filing: 1958-11-12
•
Granted: 1963-04-16
•
Expires: 1978-11-12
Abstract
No abstract record available.
Inventors
- 👤 Martin L Lydard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:37
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/22; E04B9/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A CEILING CONSTRUCTION OF THE TYPE WHICH IS SUSPENDED FROM A PRIMARY CEILING MEMBER, COMPRISING A PLURALITY OF ELONGATED CHANNEL MEMBERS OF UNIFORM CROSS SECTION DISPOSED IN SIDE-TO-SIDE ABUTTING RELATIONSHIP, EACH OF SAID CHANNEL MEMBERS HAVING A HORIZONTAL CENTRAL PORTION AND UPWARDLY EXTENDING SIDE FLANGES AT EACH SIDE OF SAID CENTRAL PORTION, SAID SIDE FLANGES HAVING A PLURALITY OF APERTURES THEREIN AND HAVING INWARDLY DIRECTED HOOK-ENGAGEABLE PROJECTIONS AT THE UPPER ENDS THEREOF, SAID CENTRAL PORTION HAVING AN ANGULARLY UPWARDLY DISPOSED LEDGE AT ONE SIDE THEREOF EXTENDING OUTWARDLY BEYOND THE CORRESPONDING SIDE FLANGE AT SAID ONE SIDE AND HAVING AN UPWARDLY DISPOSED NOTCH ADJACENT THE OTHER SIDE THEREOF LOCATED INWARDLY OF THE CORRESPONDING SIDE FLANGE AT SAID OTHER SIDE, SAID UPWARDLY DISPOSED LEDGE BEING IN DETACHABLE INTERLOCKING CONTACT WITH THE NOTCH OF THE ADJACENT CHANNEL MEMBER, AND CLIP MEANS HAVING FIRST AND SECOND PORTIONS THEREOF EXTENDING THROUGH RESPECTIVE MATING ONES OF SAID APERTURES AND HAVING A THIRD PORTION THEREOF IN ENGAGEMENT WITH THE HOOK-ENGAGEABLE PROJECTION OF ONE OF SAID CORRESPONDING SIDE FLANGES FOR MAINTAINING SIDE FLANGES OF ADJACENT CHANNEL MEMBERS IN SAID INTERLOCKING CONTACT.
Claim 2
Dependent Claim
183 words
A CEILING CONSTRUCTION OF THE TYPE WHICH IS SUSPENDED FROM A PRIMARY CEILING MEMBER, COMPRISING A PLURALITY OF ELONGATED CHANNEL MEMBERS OF UNIFORM CROSS SECTION DISPOSED IN SIDE-TO-SIDE ABUTTING RELATIONSHIP, EACH OF SAID CHANNEL MEMBERS HAVING A HORIZONTAL CENTRAL PORTION AND UPWARDLY EXTENDING SIDE FLANGES AT EACH SIDE OF SAID CENTRAL PORTION, SAID SIDE FLANGES HAVING A PLURALITY OF APERTURES THEREIN AND HAVING INWARDLY DIRECTED HOOK-ENGAGEABLE PROJECTIONS AT THE UPPER ENDS THEREOF, SAID CENTRAL PORTION HAVING AN ANGULARLY UPWARDLY DISPOSED LEDGE AT ONE SIDE THEREOF EXTENDING OUTWARDLY BEYOND THE CORRESPONDING SIDE FLANGE AT SAID ONE SIDE AND HAVING AN UPWARDLY DISPOSED NOTCH ADJACENT THE OTHER SIDE THEREOF LOCATED INWARDLY OF THE CORRESPONDING SIDE FLANGE AT SAID OTHER SIDE, SAID UPWARDLY DISPOSED LEDGE BEING IN DETACHABLE INTERLOCKING CONTACT WITH THE NOTCH OF THE ADJACENT CHANNEL MEMBER, AND CLIP MEANS HAVING FIRST AND SECOND PORTIONS THEREOF EXTENDING THROUGH RESPECTIVE MATING ONES OF SAID APERTURES AND HAVING A THIRD PORTION THEREOF IN ENGAGEMENT WITH THE HOOK-ENGAGEABLE PROJECTION OF ONE OF SAID CORRESPONDING SIDE FLANGES FOR MAINTAINING SIDE FLANGES OF ADJACENT CHANNEL MEMBERS IN SAID INTERLOCKING CONTACT.
References Cited (Backward Citations)
USRE16428E
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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) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |