US2501080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Statistical analysis system
Assignee: TNC US Holdings Inc
•
Filing: 1946-05-01
•
Granted: 1950-03-21
•
Expires: 1966-05-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur C Nielsen
- 👤 Henry A Rahmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:58
CPC Classifications
G; G07; G07C; G07C11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US511854A
Cited
GB190708524A
Cited
US998705A
Cited
US2057379A
Cited
US2004872A
Cited
DE624157C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |