US2798348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging of tow
Assignee: Celanese Corp
•
Filing: 1951-12-21
•
Granted: 1957-07-09
•
Expires: 1971-12-21
Abstract
No abstract record available.
Inventors
- 👤 Weber Harold
- 👤 Svend A Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:14
CPC Classifications
B; B65; B65B; B65B63/00; B65B63/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US588168A
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US1083765A
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US1156210A
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US1380674A
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US1490350A
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GB334107A
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US1887626A
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US1937468A
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US2304260A
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GB525283A
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US2412089A
Cited
US2619272A
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US2707806A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |