Patent US2438337A successfully refreshed from Google Patents.
US2438337A
Expired / Lapsed
US
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Combination rule and compass
Assignee: Individual
•
Filing: 1944-09-27
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Granted: 1948-03-23
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Expires: 1964-09-27
Abstract
No abstract record available.
Inventors
- 👤 Louis J Gordon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:47
CPC Classifications
B; B43; B43L; B43L7/00; B43L7/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US45535A
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US392143A
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US776987A
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US854325A
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US1182638A
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US1188644A
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US1366800A
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US1402629A
Cited
US1602490A
Cited
US1808705A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |