US3407438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasticizing system for plastic materials
Assignee: KESTERMANN MASCHF ROLF
•
Filing: 1966-06-27
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Granted: 1968-10-29
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Expires: 1986-06-27
Abstract
No abstract record available.
Inventors
- 👤 Selbach Hans-Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:26
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/34; B29B7/38; B29B7/46; B29B7/48; B29B7/482; B29B7/488; B29B7/489; B29B7/80; B29B7/82; B29B7/826; B29B7/84; B29B7/845; B29B7/86; B29C; B29C48/00; B29C48/25; B29C48/268; B29C48/36; B29C48/395; B29C48/40; B29C48/50; B29C48/68; B29C48/682; B29C48/76; B29C48/765; B29C48/766; B29C48/767; B29C48/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1320128A
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US1283947A
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US2712799A
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US2817876A
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US3146493A
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US3151192A
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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) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |