US2646956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tripod
Assignee: CADWELL Corp
•
Filing: 1948-12-17
•
Granted: 1953-07-28
•
Expires: 1968-12-17
Abstract
No abstract record available.
Inventors
- 👤 Clarence J Cadwell
- 👤 Frank M Adamson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:54
CPC Classifications
F; F16; F16M; F16M11/00; F16M11/20; F16M11/24; F16M11/26; F16M11/28; F16M11/30; F16M11/242; F16M11/245; F16M2200/00; F16M2200/02; F16M2200/025; F16M2200/027; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32254; Y10T403/32426; Y10T403/53; Y10T403/535
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US414903A
Cited
US629460A
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US714043A
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US754502A
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US1177072A
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US1185732A
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US1175352A
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US1267915A
Cited
US1494778A
Cited
US1795747A
Cited
US1970624A
Cited
US2473218A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-07-27 | 1957-01-26 | 1957-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-07-27 | 1961-01-26 | 1961-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-07-27 | 1965-01-26 | 1965-07-28 | $7700.00 | Window Closed / Lapsed |