US3471890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cleaning apparatus for removing industrial waste from machinery such as textile machinery
Assignee: Abington Textile Machinery Works Inc
•
Filing: 1967-09-29
•
Granted: 1969-10-14
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Expires: 1987-09-29
Abstract
No abstract record available.
Inventors
- 👤 Oliver H Ramo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:40
CPC Classifications
D; D01; D01H; D01H11/00; D01H11/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3059896A
Cited
US2977181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |