US2728932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Marking device
Assignee: Individual
•
Filing: 1951-06-30
•
Granted: 1956-01-03
•
Expires: 1971-06-30
Abstract
No abstract record available.
Inventors
- 👤 Sr Julian A Ramsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:38
CPC Classifications
B; B41; B41K; B41K1/00; B41K1/34; B41K1/006; B41K1/36; B41K1/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US282148A
Cited
US655091A
Cited
US1098459A
Cited
US1297784A
Cited
US2235453A
Cited
US2365908A
Cited
US2377117A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |