Patent US2629495A successfully refreshed from Google Patents.
US2629495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic sweeper
Assignee: Individual
•
Filing: 1950-01-10
•
Granted: 1953-02-24
•
Expires: 1970-01-10
Abstract
No abstract record available.
Inventors
- 👤 Stanley W Smale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:51
CPC Classifications
B; B03; B03C; B03C1/00; B03C1/02; B03C1/30; E; E01; E01H; E01H1/00; E01H1/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US931885A
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US1326559A
Cited
US1630987A
Cited
US1763457A
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US1759687A
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US1961336A
Cited
US2091343A
Cited
US2147207A
Cited
US2426795A
Cited
US2450905A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |