US1486535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-insulating plaster board
Assignee: Individual
•
Filing: 1923-04-21
•
Granted: 1924-03-11
•
Expires: 1943-04-21
Abstract
No abstract record available.
Inventors
- 👤 Treadway B Munroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:20
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/16; Y; Y10; Y10S; Y10S16/00; Y10S16/20; Y10T; Y10T428/00; Y10T428/24; Y10T428/24355; Y10T428/24372; Y10T428/2438; Y10T428/24421; Y10T428/2443; Y10T428/25; Y10T428/259; Y10T428/31504; Y10T428/31815; Y10T428/31819; Y10T428/31971; Y10T428/31975
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) | 1927-03-11 | 1927-09-10 | 1928-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1931-03-11 | 1931-09-10 | 1932-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1935-03-11 | 1935-09-10 | 1936-03-11 | $7700.00 | Window Closed / Lapsed |