Patent US2623779A successfully refreshed from Google Patents.
US2623779A
Expired / Lapsed
US
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Automatic convertible steel top
Assignee: Individual
•
Filing: 1950-03-16
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Granted: 1952-12-30
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Expires: 1970-03-16
Abstract
No abstract record available.
Inventors
- 👤 Charles V Catell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:14
CPC Classifications
B; B60; B60J; B60J7/00; B60J7/02; B60J7/026; B60J7/028; Y; Y10; Y10S; Y10S60/00; Y10S60/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306836A
Cited
US1321913A
Cited
US1230109A
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US1278837A
Cited
GB223789A
Cited
US2013314A
Cited
GB573355A
Cited
US2509623A
Cited
US2496437A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-30 | 1956-06-30 | 1956-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-30 | 1960-06-30 | 1960-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-30 | 1964-06-30 | 1964-12-30 | $7700.00 | Window Closed / Lapsed |