US2676440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum sealing machine and method
Assignee: Individual
•
Filing: 1951-02-06
•
Granted: 1954-04-27
•
Expires: 1971-02-06
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:13
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1940635A
Cited
US782203A
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US1039770A
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US1941195A
Cited
US1965678A
Cited
US2057464A
Cited
US2102716A
Cited
US2292887A
Cited
US2387812A
Cited
US2415409A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |