US2651067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for cleaning waste pipes
Assignee: MARIAN L COLLISON
•
Filing: 1949-10-24
•
Granted: 1953-09-08
•
Expires: 1969-10-24
Abstract
No abstract record available.
Inventors
- 👤 William J Collison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:10
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/302; F; F16; F16L; F16L2101/00; F16L2101/10; F16L2101/12
Claims Analysis
Total Claims: 0
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US2240087A
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US2450486A
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US2466493A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-07 | 1957-03-09 | 1957-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-07 | 1961-03-09 | 1961-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-07 | 1965-03-09 | 1965-09-08 | $7700.00 | Window Closed / Lapsed |