US2497784A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calculating machine and remote
Assignee: —
•
Filing: —
•
Granted: 1950-02-14
•
Expires: 1967-02-14
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:22
CPC Classifications
G; G06; G06C; G06C15/00; G06C15/04; G06C15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1039988A
Cited
GB270044A
Cited
US1942106A
Cited
US1932220A
Cited
GB331182A
Cited
US997983A
Cited
US939289A
Cited
US1005555A
Cited
US988327A
Cited
US1189269A
Cited
US1569450A
Cited
US1834561A
Cited
US1836671A
Cited
US1991515A
Cited
US2224774A
Cited
US2142252A
Cited
US2293127A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |