Patent US2467849A successfully refreshed from Google Patents.
US2467849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable electric rotary drain cleaner
Assignee: BRIEN O
•
Filing: 1944-06-14
•
Granted: 1949-04-19
•
Expires: 1964-06-14
Abstract
No abstract record available.
Inventors
- 👤 John V O'brien
- 👤 Harz James L Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:35
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/12; E03C1/30; E03C1/302; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19642; Y10T74/19679; Y10T74/19684
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1650911A
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US1684231A
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US1826963A
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US1936119A
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US2033670A
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US2117659A
Cited
US2201733A
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US2257559A
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US2266659A
Cited
US2278067A
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US2320309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |