US2482947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1948-07-12
•
Granted: 1949-09-27
•
Expires: 1968-07-12
Abstract
No abstract record available.
Inventors
- 👤 Swarbrick John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:30
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/02; G09F19/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US829492A
Cited
US957119A
Cited
US956857A
Cited
US1278094A
Cited
US1398838A
Cited
GB312961A
Cited
US1867051A
Cited
US2058581A
Cited
US2061309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-26 | 1953-03-28 | 1953-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-26 | 1957-03-28 | 1957-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-26 | 1961-03-28 | 1961-09-27 | $7700.00 | Window Closed / Lapsed |