Patent US2884745A successfully refreshed from Google Patents.
US2884745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sandblasting tool and method
Assignee: J C FENNELLY Co
•
Filing: 1955-12-19
•
Granted: 1959-05-05
•
Expires: 1975-12-19
Abstract
No abstract record available.
Inventors
- 👤 Marvin E Fritze
- 👤 John W Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 07:52
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/32; B24C3/325; B08; B08B; B08B9/00; B08B9/02; B08B9/027; B08B9/04; B08B9/043; B08B9/0433
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2089597A
Cited
US2259011A
Cited
US2303088A
Cited
US2358557A
Cited
US2348505A
Cited
US2439032A
Cited
US2530002A
Cited
US2739424A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |