US2533352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Case carrying hand truck
Assignee: KOLSTAD Co
•
Filing: 1947-10-25
•
Granted: 1950-12-12
•
Expires: 1967-10-25
Abstract
No abstract record available.
Inventors
- 👤 Harvey A Chapman
- 👤 Efner J Livingston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:22
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/14; B62B1/142; B62B2202/00; B62B2202/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US740802A
Cited
US1083982A
Cited
US1551928A
Cited
US1971952A
Cited
US2123669A
Cited
US2316614A
Cited
US2292234A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-11 | 1954-06-12 | 1954-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-11 | 1958-06-12 | 1958-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-11 | 1962-06-12 | 1962-12-12 | $7700.00 | Window Closed / Lapsed |