Patent US2752709A successfully refreshed from Google Patents.
US2752709A
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US
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Sign holding and attaching clamps
Assignee: Individual
•
Filing: 1953-11-09
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Granted: 1956-07-03
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Expires: 1973-11-09
Abstract
No abstract record available.
Inventors
- 👤 Boyd C Gough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:51
CPC Classifications
G; G09; G09F; G09F21/00; G09F21/04; G09F21/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1074273A
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US1478209A
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US1637564A
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US1752591A
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US1949123A
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US2074475A
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US2209864A
Cited
US2206775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |