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US2880534A
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Assignee: Individual
•
Filing: 1957-07-02
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Granted: 1959-04-07
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Expires: 1977-07-02
Abstract
No abstract record available.
Inventors
- 👤 Edward J Lund
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:50
CPC Classifications
G; G09; G09F; G09F1/00; G09F1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1726537A
Cited
US1841041A
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US2064047A
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US2224586A
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US2386642A
Cited
US2373778A
Cited
US2783565A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |