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US2877971A
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Assignee: Individual
•
Filing: 1955-10-20
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Granted: 1959-03-17
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Expires: 1975-10-20
Abstract
No abstract record available.
Inventors
- 👤 Goldstein Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:20
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/002; G09F7/18; G09F2007/1847
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US655100A
Cited
US808142A
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US1750894A
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GB412322A
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US2188612A
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US2291178A
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US2416779A
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US2459909A
Cited
US2786678A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-16 | 1962-09-15 | 1963-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-16 | 1966-09-15 | 1967-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-16 | 1970-09-15 | 1971-03-17 | $7700.00 | Window Closed / Lapsed |