US2553668A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level magnetic attachment
Assignee: Individual
•
Filing: 1948-08-05
•
Granted: 1951-05-22
•
Expires: 1968-08-05
Abstract
No abstract record available.
Inventors
- 👤 Morello Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:31
CPC Classifications
G; G01; G01B; G01B5/00; G01B5/30; B; B23; B23Q; B23Q3/00; B23Q3/15; G01C; G01C9/00; G01C9/18; G01C9/24; G01C9/26; G01C9/28; H; H02; H02B; H02B1/00; H02B1/015; H02B1/04; Y; Y10; Y10S; Y10S33/00; Y10S33/01; Y10S7/00; Y10S7/901; Y10T; Y10T24/00; Y10T24/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US527815A
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US1174887A
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US1346619A
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US1617937A
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US1932143A
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US2117132A
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US2292968A
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US2269149A
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US2297806A
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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) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |