Patent US3426188A successfully refreshed from Google Patents.
US3426188A
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US
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Fixture for use in a suspended grid ceiling system
Assignee: Wind River Systems Inc
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Filing: 1966-11-03
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Granted: 1969-02-04
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Expires: 1986-11-03
Abstract
No abstract record available.
Inventors
- 👤 Eugene Baranowski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:48
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/32; E04B9/06; E04B9/12; E04B9/16; F; F21; F21V; F21V21/00; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2852663A
Cited
US3081398A
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US3051430A
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US3155324A
Cited
US3343310A
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US3352071A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-04 | 1972-08-05 | 1973-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-04 | 1976-08-05 | 1977-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-04 | 1980-08-05 | 1981-02-04 | $7700.00 | Window Closed / Lapsed |