US3023865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suspended ceiling structure
Assignee: Individual
•
Filing: 1956-04-17
•
Granted: 1962-03-06
•
Expires: 1976-04-17
Abstract
No abstract record available.
Inventors
- 👤 Hugo E Brandstetter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:36
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/127; Y; Y10; Y10S; Y10S52/00; Y10S52/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE123898C
Cited
US995630A
Cited
GB191500575A
Cited
US2139641A
Cited
US2123366A
Cited
GB579066A
Cited
US2430961A
Cited
US2689630A
Cited
US2767315A
Cited
US2673782A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |