US3264792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspension ceiling
Assignee: HJ Zimmer Verfahrenstechnik
•
Filing: 1964-12-21
•
Granted: 1966-08-09
•
Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Drazdik Hans
- 👤 Jacobi Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:16
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/02; F24F13/06; F24F13/078; E; E04; E04B; E04B9/00; E04B9/18; E04B9/20; E04B9/32; Y; Y10; Y10S; Y10S55/00; Y10S55/29
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A SUSPENSION CEILING STRUCTURE COMPRISING MEANS ATTACHABLE TO A SUPPORT CEILING INCLUDING SUBTENDING MEANS HAVING A PLURALITY OF DOWNWARDLY INCLINED NOTCHES, CARRIER STRIP MEANS HAVING UPSTANDING WALLS WITH FLANGED ENDS SELECTIVELY ENGAGED IN SAID NOTCHES, CLAMPING MEANS SECURING SAID FLANGED ENDS INTO ENGAGEMENT WITH SAID NOTCHES, SAID CARRIER STRIP MEANS BEING FURTHER PROVIDED WITH HORIZONTALLY EXTENDING LATERAL GROOVES, AND MEANS COMPRISING
Claim 2
Dependent Claim
61 words
A SUSPENSION CEILING STRUCTURE COMPRISING MEANS ATTACHABLE TO A SUPPORT CEILING INCLUDING SUBTENDING MEANS HAVING A PLURALITY OF DOWNWARDLY INCLINED NOTCHES, CARRIER STRIP MEANS HAVING UPSTANDING WALLS WITH FLANGED ENDS SELECTIVELY ENGAGED IN SAID NOTCHES, CLAMPING MEANS SECURING SAID FLANGED ENDS INTO ENGAGEMENT WITH SAID NOTCHES, SAID CARRIER STRIP MEANS BEING FURTHER PROVIDED WITH HORIZONTALLY EXTENDING LATERAL GROOVES, AND MEANS COMPRISING
References Cited (Backward Citations)
US2943367A
Cited
FR1253918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |