US3443278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for extruding multicolored sheet material
Assignee: Rowland Products Inc
•
Filing: 1965-10-22
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Granted: 1969-05-13
•
Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Jan P Nauta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:18
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/25; B29C48/30; B29C48/305; B29C48/307; B29C48/03; B29C48/07; B29C48/08; B29C48/16; B29C48/17; B29C48/18; B29C48/185; B29C48/21; B29C48/12; B29C48/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2031387A
Cited
US2808617A
Cited
US2985556A
Cited
US3192562A
Cited
US3192563A
Cited
US3204290A
Cited
US3321804A
Cited
US3320636A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |