US2072152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat insulating material
Assignee: Individual
•
Filing: 1934-11-27
•
Granted: 1937-03-02
•
Expires: 1954-11-27
Abstract
No abstract record available.
Inventors
- 👤 Kenneth B Blake
- 👤 Cornelius S Kemp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:41
CPC Classifications
A; A47; A47C; A47C31/00; A47C31/006; A47G; A47G9/00; A47G9/02; A47G9/0207; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033
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) | 1940-03-01 | 1940-08-31 | 1941-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-03-01 | 1944-08-31 | 1945-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-03-01 | 1948-08-31 | 1949-03-02 | $7700.00 | Window Closed / Lapsed |