US2447467A
Expired / Lapsed
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Assignee: Stewart Warner Corp
•
Filing: 1943-10-23
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Granted: 1948-08-17
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Expires: 1963-10-23
Abstract
No abstract record available.
Inventors
- 👤 George H Palm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:23
CPC Classifications
F; F04; F04B; F04B49/00; F04B49/08; F01; F01B; F01B1/00; F01B1/06; F01B1/062; F04B1/00; F04B1/005; F04B1/04; F04B1/0404; F04B1/0452; F04B1/0456; F04B1/12; F04B1/14; F04B1/141; F04B1/146; F04B1/16; F04B11/00; F04B11/005; F04B11/0058; F04B11/0066; F04B11/0075; F04B23/00; F04B23/02; F04B23/021; F04B23/023; F04B23/04; F04B23/08; F04B23/10; F04B49/005; F04B49/10; F04B9/00; F04B9/02; F04B9/08; F04B9/12
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |