Patent US2670581A successfully refreshed from Google Patents.
US2670581A
Expired / Lapsed
US
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Packaging machine
Assignee: PAD Y WAX Co Inc
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Filing: 1951-10-29
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Granted: 1954-03-02
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Expires: 1971-10-29
Abstract
No abstract record available.
Inventors
- 👤 John H Stroop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:51
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/02; B65B59/00; B65B59/001; B65B59/005; B65B9/026; B65B9/04; B65B9/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US662494A
Cited
US928725A
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US2083617A
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US2083618A
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US2233466A
Cited
US2336962A
Cited
US2586586A
Cited
US2608809A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |