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US2761215A
Expired / Lapsed
US
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Combination level and try square
Assignee: Individual
•
Filing: 1955-06-20
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Granted: 1956-09-04
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Louis A Macklanburg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:00
CPC Classifications
G; G01; G01C; G01C9/00; G01C9/18; G01C9/24; G01B; G01B3/00; G01B3/56; G01B3/566
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US419615A
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US792930A
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US806518A
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US913703A
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US1038008A
Cited
US1128143A
Cited
US1211458A
Cited
US1394323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |