US2647679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellular case
Assignee: Waldorf Paper Products Co
•
Filing: 1949-11-28
•
Granted: 1953-08-04
•
Expires: 1969-11-28
Abstract
No abstract record available.
Inventors
- 👤 Paul A Schilling
- 👤 Thomas G Mairs
- 👤 John B Baird
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:29
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/48; B65D5/48024; B65D5/48048; B65D5/48026; B65D5/48038
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US524625A
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US973429A
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US937805A
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US963250A
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US1202985A
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US1475983A
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US1890965A
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US2312594A
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US2475107A
Cited
US2535289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-08-03 | 1957-02-02 | 1957-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-03 | 1961-02-02 | 1961-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-03 | 1965-02-02 | 1965-08-04 | $7700.00 | Window Closed / Lapsed |