US3039435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic eraser and brush
Assignee: Individual
•
Filing: 1959-03-13
•
Granted: 1962-06-19
•
Expires: 1979-03-13
Abstract
No abstract record available.
Inventors
- 👤 Meyer Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:26
CPC Classifications
B; B43; B43L; B43L19/00; B43L19/0056; B43L19/0062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1649052A
Cited
US931405A
Cited
GB203426A
Cited
US1530309A
Cited
US2268023A
Cited
US2385859A
Cited
US2434973A
Cited
US2439162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |