US2990037A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wall panel attachment for ceiling runner system
Assignee: EF Hauserman Co
•
Filing: 1955-01-27
•
Granted: 1961-06-27
•
Expires: 1975-01-27
Abstract
No abstract record available.
Inventors
- 👤 Gilbert L Fowles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:42
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04B2/825; E04B9/00; E04B9/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US16032A
Cited
US691599A
Cited
US1697521A
Cited
US2058372A
Cited
US2250951A
Cited
GB591110A
Cited
US2659807A
Cited
US2766855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-26 | 1964-12-26 | 1965-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-26 | 1968-12-26 | 1969-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-26 | 1972-12-26 | 1973-06-27 | $7700.00 | Window Closed / Lapsed |