US2553338A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Income tax computing chart
Assignee: —
•
Filing: —
•
Granted: 1951-05-15
•
Expires: 1968-05-15
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:48
CPC Classifications
G; G06; G06Q; G06Q40/00; G06Q40/02; G06G; G06G1/00; G06G1/0005; G06G1/0073; G06G1/0089; G06G1/14; G06Q20/00; G06Q20/08; G06Q20/20; G06Q20/207
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |