Patent US2593954A successfully refreshed from Google Patents.
US2593954A
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Assignee: ARTHUR O DUPUY
•
Filing: 1950-05-19
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Granted: 1952-04-22
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Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Henry J Abreu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:05
CPC Classifications
B; B66; B66C; B66C1/00; B66C1/10; F; F27; F27D; F27D3/00; F27D3/0021; F27D3/0022; F27D3/12; F27D3/123; F27D2003/0034; F27D2003/0068; F27D2003/0069; Y; Y10; Y10S; Y10S414/00; Y10S414/10; Y10S414/11
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE493772C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-22 | 1955-10-22 | 1956-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-22 | 1959-10-22 | 1960-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-22 | 1963-10-22 | 1964-04-22 | $7700.00 | Window Closed / Lapsed |