Patent US2912259A successfully refreshed from Google Patents.
US2912259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Identifying device for documents
Assignee: Individual
•
Filing: 1958-02-21
•
Granted: 1959-11-10
•
Expires: 1978-02-21
Abstract
No abstract record available.
Inventors
- 👤 Young Elmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:18
CPC Classifications
G; G09; G09F; G09F3/00; G09F3/02; G09F2003/0208; G09F2003/021
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1560047A
Cited
US2736114A
Cited
US891505A
Cited
US1374208A
Cited
US2198802A
Cited
US2500612A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |