US2445232A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1939-01-07
•
Granted: 1948-07-13
•
Expires: 1959-01-07
Abstract
No abstract record available.
Inventors
- 👤 Molly Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:04
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0032; F01B3/0044; F01B3/0052; F01B3/0076; F04; F04B; F04B1/00; F04B1/12; F04B1/20; F04B1/2014; F04B1/2021; F04B1/2064; F04B1/2071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US925148A
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US1263180A
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US1137283A
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US1624363A
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US1924629A
Cited
US1822064A
Cited
US2155455A
Cited
US2069651A
Cited
US2140633A
Cited
US2146133A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-13 | 1952-01-12 | 1952-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-13 | 1956-01-12 | 1956-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-13 | 1960-01-12 | 1960-07-13 | $7700.00 | Window Closed / Lapsed |