US2324628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite board structure
Assignee: Individual
•
Filing: 1941-08-20
•
Granted: 1943-07-20
•
Expires: 1961-08-20
Abstract
No abstract record available.
Inventors
- 👤 Kahr Gustaf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:12
CPC Classifications
H; H04; H04L; H04L17/00; H04L17/02; H04L17/12; B; B27; B27D; B27D1/00; B27D1/04; B27D1/06; B27M; B27M3/00; B27M3/0013; B27M3/0086; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/12; E04F; E04F15/00; E04F15/02; E04F15/04; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/162; Y10T428/163; Y10T428/164; Y10T428/167; Y10T428/24; Y10T428/24058; Y10T428/24066
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1946-07-19 | 1947-01-18 | 1947-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1950-07-19 | 1951-01-18 | 1951-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1954-07-19 | 1955-01-18 | 1955-07-20 | $7700.00 | Window Closed / Lapsed |