US1356764A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating building-slab
Assignee: Individual
•
Filing: 1919-11-24
•
Granted: 1920-10-26
•
Expires: 1939-11-24
Abstract
No abstract record available.
Inventors
- 👤 Henderson Turner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:56
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/12; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24744; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2996; Y10T428/31504; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T428/31989
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) | 1923-10-26 | 1924-04-26 | 1924-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1927-10-26 | 1928-04-26 | 1928-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1931-10-26 | 1932-04-26 | 1932-10-26 | $7700.00 | Window Closed / Lapsed |