Patent US3292332A successfully refreshed from Google Patents.
US3292332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended ceiling structure
Assignee: Chicago Metallic Co LLC
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Filing: 1960-12-21
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Granted: 1966-12-20
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Expires: 1980-12-21
Abstract
No abstract record available.
Inventors
- 👤 Jahn Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:20
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/065; E04B9/067; E04B9/08; E04B9/12; E04B9/122; F; F16; F16B; F16B2/00; F16B2/20; F16B2/22; F16B2/24; F16B2/248; F16B7/00; F16B7/04; F16B7/044; F16B7/048; F16B7/0486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
48 words
A CEILING SUSPENSION GRID SYSTEM COMPRISING A PLURALITY OF RUNNERS DISPOSED IN GENERALLY PARALLEL RELATION, AND A PLURALITY OF CROSS RUNNERS EXTENDING TRANSVERSELY TO SAID FIRST-MENTIONED RUNNERS AND CONNECTED THERETO, SAID RUNNERS HAVING THEIR ENDS IDENTICALLY FORMED FOR ENGAGEMENT WITH AN INTERLOCKING MEANS ASSOCIATED WITH ADJACENT COOPERABLE RUNNERS.
Claim 2
Dependent Claim
48 words
A CEILING SUSPENSION GRID SYSTEM COMPRISING A PLURALITY OF RUNNERS DISPOSED IN GENERALLY PARALLEL RELATION, AND A PLURALITY OF CROSS RUNNERS EXTENDING TRANSVERSELY TO SAID FIRST-MENTIONED RUNNERS AND CONNECTED THERETO, SAID RUNNERS HAVING THEIR ENDS IDENTICALLY FORMED FOR ENGAGEMENT WITH AN INTERLOCKING MEANS ASSOCIATED WITH ADJACENT COOPERABLE RUNNERS.
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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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |