US1462991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Building brick and process of making same
Assignee: CHARLES L MCKENZIE
•
Filing: 1922-03-31
•
Granted: 1923-07-24
•
Expires: 1942-03-31
Abstract
No abstract record available.
Inventors
- 👤 Robert L Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:07
CPC Classifications
C; C04; C04B; C04B28/00; C04B28/02; C04B28/08; C04B7/00; C04B7/14; C04B7/147; Y; Y02; Y02P; Y02P40/00; Y02P40/10
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) | 1926-07-23 | 1927-01-22 | 1927-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1930-07-23 | 1931-01-22 | 1931-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1934-07-23 | 1935-01-22 | 1935-07-24 | $7700.00 | Window Closed / Lapsed |