Patent US2958172A successfully refreshed from Google Patents.
US2958172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for packaging articles in a printed plastic sheet
Assignee: WASHINGTON STEEL PRODUCTS Inc
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Filing: 1957-03-01
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Granted: 1960-11-01
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Expires: 1977-03-01
Abstract
No abstract record available.
Inventors
- 👤 Branche Harvey W La
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:28
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/50; B65B11/52
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1980022A
Cited
US2511024A
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US2536048A
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US2690593A
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US2750719A
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US2836941A
Cited
US2749572A
Cited
US2855735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |