US1903772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core-breaker
Assignee: Individual
•
Filing: 1932-06-10
•
Granted: 1933-04-18
•
Expires: 1952-06-10
Abstract
No abstract record available.
Inventors
- 👤 Newton K Bowman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:18
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/12; B28D1/124; B28D1/125; B27; B27B; B27B33/00; B27B33/14; B27B33/142; B27B33/145; E; E21; E21C; E21C35/00; E21C35/18
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) | 1936-04-17 | 1936-10-17 | 1937-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-04-17 | 1940-10-17 | 1941-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-04-17 | 1944-10-17 | 1945-04-18 | $7700.00 | Window Closed / Lapsed |