Patent US2985916A successfully refreshed from Google Patents.
US2985916A
Expired / Lapsed
US
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Method and mold for making seamless polyurethane containers
Assignee: Bayer Corp
•
Filing: 1957-03-19
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Granted: 1961-05-30
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Expires: 1977-03-19
Abstract
No abstract record available.
Inventors
- 👤 Reuter Franz Gottfried
- 👤 Kordes Heinrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:04
CPC Classifications
B; B29; B29C; B29C39/00; B29C39/02; B29C39/028; B29C33/00; B29C33/44; B29C33/448; B29C39/10; B29C70/00; B29C70/68; B29C70/74; B29C70/742; Y; Y10; Y10S; Y10S425/00; Y10S425/012
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2136432A
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US2217734A
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US2280074A
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US2505807A
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US2717422A
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US2641292A
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US2741800A
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US2730765A
Cited
US2965079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |