US3188674A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary tube end cleaner
Assignee: Individual
•
Filing: 1963-10-18
•
Granted: 1965-06-15
•
Expires: 1983-10-18
Abstract
No abstract record available.
Inventors
- 👤 Riley L Hobbs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:13
CPC Classifications
B; B08; B08B; B08B9/00; B08B9/02; B08B9/021; A; A46; A46B; A46B7/00; A46B7/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A HOLLOW CYLINDRICAL HOUSING HAVING A BACK WALL, A SIDE WALL AND AN OPEN FORWARD END, A RESILIENT SPLIT SLEEVE ENGAGED IN THE HOUSING, SLEEVE COMPRESSING SCREWS THREADED THROUGH SAID SIDE WALL AND ENGAGED WITH THE SLEEVE, AND A RESILIENT TUBULAR SPLIT BRUSH ENGAGED IN THE SLEEVE AND HAVING FRICTIONAL CONTACT THEREWITH.
Claim 2
Independent Claim
59 words
A DEVICE OF THE CHARACTER DESCRIBED, COMPRISING A HOLLOW CYLINDRICAL HOUSING HAVING A BACK WALL, A SIDE WALL AND AN OPEN FORWARD END, A RESILIENT SPLIT SLEEVE ENGAGED IN THE HOUSING, SLEEVE COMPRESSING SCREWS THREADED THROUGH SAID SIDE WALL AND ENGAGED WITH THE SLEEVE, AND A RESILIENT TUBULAR SPLIT BRUSH ENGAGED IN THE SLEEVE AND HAVING FRICTIONAL CONTACT THEREWITH.
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |