US2682372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Income tax calculator
Assignee: —
•
Filing: —
•
Granted: 1954-06-29
•
Expires: 1971-06-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:04
CPC Classifications
G; G06; G06G; G06G1/00; G06G1/0005; G06G1/0073; G06G1/0089; G06Q; G06Q40/00; G06Q40/12; G06Q40/123
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US563778A
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US2187496A
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US2424890A
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US2553338A
Cited
US865808A
Cited
US998603A
Cited
US1145020A
Cited
US2427976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |