US2449745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shot blasting machine
Assignee: Individual
•
Filing: 1947-04-01
•
Granted: 1948-09-21
•
Expires: 1967-04-01
Abstract
No abstract record available.
Inventors
- 👤 Walter E Jewell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:32
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/18; B24C3/26; B24C3/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1581045A
Cited
US1833301A
Cited
US2020447A
Cited
US2261185A
Cited
US2330949A
Cited
US2424955A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |