US3390495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexed ceiling structure with trimmed edges
Assignee: Individual
•
Filing: 1966-03-02
•
Granted: 1968-07-02
•
Expires: 1986-03-02
Abstract
No abstract record available.
Inventors
- 👤 Dalby Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:34
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/07; E04F13/08; E04F13/0801; E04F13/0803; E04F13/081; E04F13/0821; E04B; E04B9/00; E04B9/34; E04B9/36; E04B9/363; E04F13/0805; E04F13/0812; E04F13/0871; E04F13/0873
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA689537A
Cited
US2101952A
Cited
DE954942C
Cited
US2994113A
Cited
US3254462A
Cited
US3080022A
Cited
US3173523A
Cited
FR1358298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-02 | 1972-01-01 | 1972-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-02 | 1976-01-01 | 1976-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-02 | 1980-01-01 | 1980-07-02 | $7700.00 | Window Closed / Lapsed |