US2581858A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trammel attachment for tape measures
Assignee: Individual
•
Filing: 1947-06-09
•
Granted: 1952-01-08
•
Expires: 1967-06-09
Abstract
No abstract record available.
Inventors
- 👤 Hilt Carl
- 👤 James E Butterworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:18
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/10; G01B3/1071; G01B2003/1074; G01B2003/1076; G01B3/1084; G01B3/1089
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US588129A
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US776897A
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US812322A
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US1045300A
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US1259886A
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FR500362A
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US1404794A
Cited
DE604777C
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US2349670A
Cited
US2400343A
Cited
US2443672A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-07 | 1955-07-09 | 1956-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-07 | 1959-07-09 | 1960-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-07 | 1963-07-09 | 1964-01-08 | $7700.00 | Window Closed / Lapsed |