US2827822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for identifying printed documents and the like as genuine
Assignee: Individual
•
Filing: 1953-02-02
•
Granted: 1958-03-25
•
Expires: 1973-02-02
Abstract
No abstract record available.
Inventors
- 👤 Ross L Timms
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:55
CPC Classifications
G; G07; G07D; G07D7/00; G07D7/20; G07D7/202; G07D7/06; G07D7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |