Patent US2528765A successfully refreshed from Google Patents.
US2528765A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pocket sketching set
Assignee: Individual
•
Filing: 1947-01-04
•
Granted: 1950-11-07
•
Expires: 1967-01-04
Abstract
No abstract record available.
Inventors
- 👤 Jr John E Lindberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:51
CPC Classifications
B; B43; B43L; B43L3/00; B42; B42D; B42D5/00; B42D5/003; B42D5/005
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US781222A
Cited
US1065616A
Cited
US1535242A
Cited
US1887160A
Cited
US2334487A
Cited
US2328807A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-11-06 | 1954-05-08 | 1954-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-11-06 | 1958-05-08 | 1958-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-11-06 | 1962-05-08 | 1962-11-07 | $7700.00 | Window Closed / Lapsed |