US3374581A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-clogging type blast device
Assignee: AJEN LAB Inc
•
Filing: 1966-06-14
•
Granted: 1968-03-26
•
Expires: 1986-06-14
Abstract
No abstract record available.
Inventors
- 👤 Robert G Millhiser
- 👤 Raymond C Winger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:00
CPC Classifications
B; B24; B24C; B24C9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US108408A
Cited
US252979A
Cited
US573180A
Cited
US3150467A
Cited
US3107860A
Cited
US3160989A
Cited
US3237351A
Cited
US3257759A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |