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US2464500A
Expired / Lapsed
US
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Tripod head
Assignee: Individual
•
Filing: 1947-04-29
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Granted: 1949-03-15
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Expires: 1967-04-29
Abstract
No abstract record available.
Inventors
- 👤 Charles W Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:28
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/20; F16M11/2007; F16M11/2035; F16M11/2078; F16M11/02; F16M11/04; F16M11/06; F16M11/10; F16M2200/00; F16M2200/02; F16M2200/021; F16M2200/022; F16M2200/06; F16M2200/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US807078A
Cited
US1831086A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |