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US2480565A
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Assignee: Individual
•
Filing: 1945-01-03
•
Granted: 1949-08-30
•
Expires: 1965-01-03
Abstract
No abstract record available.
Inventors
- 👤 Franks David
- 👤 Shapiro Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:29
CPC Classifications
G; G04; G04D; G04D1/00; G04D1/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US674778A
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US761523A
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FR449929A
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US1313271A
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US1372661A
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FR548938A
Cited
US1478651A
Cited
US1594072A
Cited
US1579992A
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US1760784A
Cited
GB404910A
Cited
US2389954A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-29 | 1953-02-28 | 1953-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-29 | 1957-02-28 | 1957-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-29 | 1961-02-28 | 1961-08-30 | $7700.00 | Window Closed / Lapsed |