US1474657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plaster board
Assignee: BERNARD E CLARK
•
Filing: 1922-08-14
•
Granted: 1923-11-20
•
Expires: 1942-08-14
Abstract
No abstract record available.
Inventors
- 👤 Walper Curry Ora
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:33
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; Y; Y10; Y10S; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924; Y10T428/249926; Y10T428/249932; Y10T428/249953; Y10T428/249962; Y10T428/249964; Y10T428/249965; Y10T428/249966; Y10T428/249967; Y10T428/249968
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) | 1926-11-19 | 1927-05-21 | 1927-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-11-19 | 1931-05-21 | 1931-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-11-19 | 1935-05-21 | 1935-11-20 | $7700.00 | Window Closed / Lapsed |