US3523391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive blast cleaning apparatus
Assignee: INTERCONTINENTAL Mfg CO Inc
•
Filing: 1967-03-13
•
Granted: 1970-08-11
•
Expires: 1987-03-13
Abstract
No abstract record available.
Inventors
- 👤 Louis E Levinson
- 👤 Herbert Ford Elsenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:18
CPC Classifications
B; B24; B24C; B24C3/00; B24C3/32; B24C3/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US708880A
Cited
US1476854A
Cited
US1952848A
Cited
US2351272A
Cited
US2495269A
Cited
US2565341A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-10 | 1974-02-09 | 1974-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-10 | 1978-02-09 | 1978-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-10 | 1982-02-09 | 1982-08-11 | $7700.00 | Window Closed / Lapsed |