US2154143A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Panel and method of making
Assignee: COPPER HOUSES Inc
•
Filing: 1937-08-23
•
Granted: 1939-04-11
•
Expires: 1957-08-23
Abstract
No abstract record available.
Inventors
- 👤 John J Whelan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:49
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/26; E04C2/284; E04C2/292; Y; Y10; Y10S; Y10S220/00; Y10S220/23; Y10S220/917; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1034; Y10T428/00; Y10T428/24; Y10T428/2419; Y10T428/24215; Y10T428/24231; Y10T428/31504; Y10T428/31678; Y10T428/31703
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-04-10 | 1942-10-10 | 1943-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-04-10 | 1946-10-10 | 1947-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-04-10 | 1950-10-10 | 1951-04-11 | $7700.00 | Window Closed / Lapsed |