US2064327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite construction material
Assignee: Upson Co
•
Filing: 1931-03-27
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Granted: 1936-12-15
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Expires: 1951-03-27
Abstract
No abstract record available.
Inventors
- 👤 Charles A Upson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:43
CPC Classifications
D; D21; D21J; D21J1/00; D21J1/16; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31703; Y10T428/31971; Y10T428/31993; Y10T442/00; Y10T442/20; Y10T442/25; Y10T442/2631; Y10T442/2639
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) | 1939-12-15 | 1940-06-15 | 1940-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-12-15 | 1944-06-15 | 1944-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-12-15 | 1948-06-15 | 1948-12-15 | $7700.00 | Window Closed / Lapsed |