Patent US3503005A successfully refreshed from Google Patents.
US2424359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adding machine
Assignee: —
•
Filing: —
•
Granted: 1947-07-22
•
Expires: 1964-07-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:36
CPC Classifications
G; G06; G06C; G06C7/00; G06C7/10; G06C21/00; G06C21/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1965611A
Cited
US1992142A
Cited
US2052444A
Cited
US2099060A
Cited
US2176146A
Cited
US2320399A
Cited
US1050039A
Cited
US1583102A
Cited
US2308292A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-07-21 | 1951-01-20 | 1951-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-07-21 | 1955-01-20 | 1955-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-07-21 | 1959-01-20 | 1959-07-22 | $7700.00 | Window Closed / Lapsed |