US2641074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identification device
Assignee: Individual
•
Filing: 1948-07-12
•
Granted: 1953-06-09
•
Expires: 1968-07-12
Abstract
No abstract record available.
Inventors
- 👤 Paul P Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:56
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1042918A
Cited
US1258146A
Cited
US1262447A
Cited
US1682540A
Cited
US1851491A
Cited
US1865643A
Cited
US1991673A
Cited
US2121203A
Cited
US2201139A
Cited
US2449181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-08 | 1956-12-08 | 1957-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-08 | 1960-12-08 | 1961-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-08 | 1964-12-08 | 1965-06-09 | $7700.00 | Window Closed / Lapsed |