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US2430775A
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Assignee: Individual
•
Filing: 1945-10-01
•
Granted: 1947-11-11
•
Expires: 1965-10-01
Abstract
No abstract record available.
Inventors
- 👤 John B Marchese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:49
CPC Classifications
F; F04; F04D; F04D15/00; F04D15/02; F04D15/0209; Y; Y10; Y10T; Y10T137/00; Y10T137/8158; Y10T137/8175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1972968A
Cited
US1541112A
Cited
US1941683A
Cited
US1913557A
Cited
US2277977A
Cited
US2275066A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-11-10 | 1951-05-12 | 1951-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-11-10 | 1955-05-12 | 1955-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-11-10 | 1959-05-12 | 1959-11-11 | $7700.00 | Window Closed / Lapsed |