US3447272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for wet abrasive blasting
Assignee: Individual
•
Filing: 1967-05-17
•
Granted: 1969-06-03
•
Expires: 1987-05-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Eppler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:55
CPC Classifications
B; B24; B24C; B24C11/00; B24C11/005; B24C3/00; B24C3/18; B24C3/20; B24C3/22; B24C7/00; B24C7/0007; B24C7/0038; B24C9/00; B24C9/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2200587A
Cited
US2380738A
Cited
US2569952A
Cited
US2576008A
Cited
US2613482A
Cited
US2667015A
Cited
US2797530A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-02 | 1972-12-02 | 1973-06-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-02 | 1976-12-02 | 1977-06-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-02 | 1980-12-02 | 1981-06-03 | $7700.00 | Window Closed / Lapsed |