US3052323A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lift truck
Assignee: GRAND SPECIALTIES CO
•
Filing: 1961-03-24
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Granted: 1962-09-04
•
Expires: 1981-03-24
Abstract
No abstract record available.
Inventors
- 👤 Fred P Hopfeld
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:23
CPC Classifications
B; B62; B62B; B62B1/00; B62B1/10; B62B1/14; B62B1/008; B62B2203/00; B62B2203/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1544356A
Cited
US2415655A
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US2514825A
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US2560131A
Cited
US2710759A
Cited
US2885961A
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DE961787C
Cited
US2785817A
Cited
US2959309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |