Patent US2553791A successfully refreshed from Google Patents.
US2553791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulley
Assignee: Individual
•
Filing: 1945-11-19
•
Granted: 1951-05-22
•
Expires: 1965-11-19
Abstract
No abstract record available.
Inventors
- 👤 Paul A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:34
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/36; Y; Y10; Y10S; Y10S474/00; Y10S474/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US337024A
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US414972A
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US1357266A
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US792768A
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US917450A
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US1380218A
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US1371212A
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US1494409A
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US1940617A
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US2156920A
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US2269821A
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US2417467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-21 | 1954-11-20 | 1955-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-21 | 1958-11-20 | 1959-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-21 | 1962-11-20 | 1963-05-22 | $7700.00 | Window Closed / Lapsed |