Patent US3619960A successfully refreshed from Google Patents.
US3619960A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination ceiling grid and partition receiver
Assignee: Individual
•
Filing: 1969-11-04
•
Granted: 1971-11-16
•
Expires: 1989-11-04
Abstract
Abstract A CEILING GRID WHICH IS ALSO UNABLE AS A PARTITION RECEIVER. THE CEILING GRID HAS LATERALLY OUTWARDLY ENTENDING FLANGE PORTIONS ADAPTED TO MARGINALLY SUPPORT CEILING PANELS. IT ALSO HAS AN ELONGATED T-SHAPED SLOT OPEN THE BOTTOM FOR RECEIVING FASTENING MEANS ADAPTED MOUNT A PARTITION HEADER.
Inventors
- 👤 Walter W Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 23:55
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/008
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |