US2681173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tray structure
Assignee: Waldorf Paper Products Co
•
Filing: 1949-02-14
•
Granted: 1954-06-15
•
Expires: 1969-02-14
Abstract
No abstract record available.
Inventors
- 👤 Guyer Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:26
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/22; B65D5/2038; B65D5/2047; Y; Y10; Y10S; Y10S229/00; Y10S229/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE17975E
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GB191112871A
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US993919A
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FR463403A
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US1667017A
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US2008443A
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US2009828A
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US2083036A
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US2220076A
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US2214813A
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US2465588A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-14 | 1957-12-14 | 1958-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-14 | 1961-12-14 | 1962-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-14 | 1965-12-14 | 1966-06-15 | $7700.00 | Window Closed / Lapsed |