US1523634A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building material and process of manufacture thereof
Assignee: Individual
•
Filing: 1922-03-16
•
Granted: 1925-01-20
•
Expires: 1942-03-16
Abstract
No abstract record available.
Inventors
- 👤 Roscoe B Crabbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:14
CPC Classifications
E; E04; E04B; E04B1/00; E04B1/62; Y; Y10; Y10T; Y10T442/00; Y10T442/50; Y10T442/51; Y10T442/54; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2192; Y10T83/22; Y10T83/2205; Y10T83/444; Y10T83/4577; Y10T83/4579; Y10T83/4607; Y10T83/4645; Y10T83/929; Y10T83/9309; Y10T83/9312; Y10T83/9457; Y10T83/9464; Y10T83/9469; Y10T83/9471
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) | 1928-01-20 | 1928-07-21 | 1929-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1932-01-20 | 1932-07-21 | 1933-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1936-01-20 | 1936-07-21 | 1937-01-20 | $7700.00 | Window Closed / Lapsed |