US2939385A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corporate seal
Assignee: Individual
•
Filing: 1958-01-16
•
Granted: 1960-06-07
•
Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Wolberg Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:39
CPC Classifications
B; B41; B41K; B41K3/00; B41K3/36; B44; B44B; B44B5/00; B44B5/0004; B44B5/0033; B44B5/0038; B44B5/0085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1306905A
Cited
US1016292A
Cited
US998427A
Cited
US1162883A
Cited
US1209458A
Cited
US1471688A
Cited
US1794337A
Cited
US2706448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |