US3057267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton opening mechanism
Assignee: Emhart Manufacturing Co
•
Filing: 1960-06-28
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Granted: 1962-10-09
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Expires: 1980-06-28
Abstract
No abstract record available.
Inventors
- 👤 Jr Curtiss S Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 03:41
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/26; B65B43/34; B65B43/345; B31; B31B; B31B2100/00; B31B2120/00; B31B2120/30; B31B50/00; B31B50/004; B31B50/74; B31B50/76; B31B50/78
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-08 | 1966-04-09 | 1966-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-08 | 1970-04-09 | 1970-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-08 | 1974-04-09 | 1974-10-09 | $7700.00 | Window Closed / Lapsed |