US2937481A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a package
Assignee: Fr Corp
•
Filing: 1958-06-19
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Granted: 1960-05-24
•
Expires: 1978-06-19
Abstract
No abstract record available.
Inventors
- 👤 Palmer Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:01
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/70; B29C66/72; B29C66/723; B29C66/7232; B29C66/72321; B29C65/00; B29C65/02; B29C65/34; B29C65/36; B29C65/3604; B29C65/3644; B29C65/3656; B29C65/3668; B29C65/3672; B29C65/3676; B29C65/368; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/114; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/53461; B29C66/72327; B29C66/72328; B29C66/80; B29C66/81; B29C66/818; B29C66/8181; B29C66/83; B29C66/836; B65; B65B; B65B51/00; B65B51/10; B65B51/22; B65B51/227; B65D; B65D41/00; B65D41/02; B65D41/04; B65D41/0435; B65D41/045; B29C66/71; B29C66/82; B29C66/822; B29C66/8223; B29L; B29L2031/00; B29L2031/712; B29L2031/7158
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2236491A
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US2372885A
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US2431114A
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US2553259A
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US2620939A
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US2588604A
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US2681296A
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US2799981A
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US2833683A
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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) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |