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Patent US2692074A successfully refreshed from Google Patents.
US2692074A
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US
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Apparatus for evacuating and heat-sealing packages
Assignee: Marathon Corp
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Filing: 1952-08-14
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Granted: 1954-10-19
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Expires: 1972-08-14
Abstract
No abstract record available.
Inventors
- 👤 Mueller William George
- 👤 Cherepow Frederic Harold
- 👤 Jr August Bartes
- 👤 Klause Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:30
CPC Classifications
B; B65; B65B; B65B31/00; B65B31/04; B65B31/06; B65B51/00; B65B51/10; B65B51/14; B65B51/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-10-18 | 1958-04-19 | 1958-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-10-18 | 1962-04-19 | 1962-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-10-18 | 1966-04-19 | 1966-10-19 | $7700.00 | Window Closed / Lapsed |