US2673020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Container opening device
Assignee: Primerica Inc
•
Filing: 1949-06-28
•
Granted: 1954-03-23
•
Expires: 1969-06-28
Abstract
No abstract record available.
Inventors
- 👤 August E Almgren
- 👤 John P Jakob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 19:32
CPC Classifications
B; B65; B65B; B65B43/00; B65B43/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2386152A
Cited
US1753548A
Cited
US1605560A
Cited
US1922772A
Cited
US2284660A
Cited
US2420642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-22 | 1957-09-21 | 1958-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-22 | 1961-09-21 | 1962-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-22 | 1965-09-21 | 1966-03-23 | $7700.00 | Window Closed / Lapsed |