US1447708A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous wall board and process for producing the same
Assignee: Individual
•
Filing: 1920-05-17
•
Granted: 1923-03-06
•
Expires: 1940-05-17
Abstract
No abstract record available.
Inventors
- 👤 James H Caffrey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:09
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/52; Y; Y10; Y10S; Y10S200/00; Y10S200/03; Y10S428/00; Y10S428/92; Y10S428/921; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24298; Y10T83/00; Y10T83/465; Y10T83/4757; Y10T83/4763
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) | 1926-03-05 | 1926-09-04 | 1927-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-03-05 | 1930-09-04 | 1931-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-03-05 | 1934-09-04 | 1935-03-06 | $7700.00 | Window Closed / Lapsed |