Patent US2056069A successfully refreshed from Google Patents.
US2056069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Structural tile and method of
Assignee: —
•
Filing: —
•
Granted: 1936-09-29
•
Expires: 1953-09-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:40
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/02; E04B1/12; B; B28; B28B; B28B7/00; B28B7/16; B28B7/162; Y; Y10; Y10S; Y10S425/00; Y10S425/111
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) | 1939-09-29 | 1940-03-30 | 1940-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-09-29 | 1944-03-30 | 1944-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-09-29 | 1948-03-30 | 1948-09-29 | $7700.00 | Window Closed / Lapsed |