US2918657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Data reduction system
Assignee: Victor Adding Machine Co
•
Filing: 1954-12-01
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Granted: 1959-12-22
•
Expires: 1974-12-01
Abstract
No abstract record available.
Inventors
- 👤 Gale W Crampton
- 👤 Le Roy D Barter
- 👤 Reginald G Schuler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
H; H03; H03M; H03M1/00; H03M1/10; H03M1/1071
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2656524A
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US2710397A
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US2700755A
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US2679636A
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US2674727A
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US2679638A
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US2796596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |