US3549735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion apparatus and method
Assignee: OI Glass Inc
•
Filing: 1968-03-25
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Granted: 1970-12-22
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Expires: 1988-03-25
Abstract
No abstract record available.
Inventors
- 👤 John F Moss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:49
CPC Classifications
B; B29; B29C; B29C49/00; B29C49/02; B29C49/04; B29C48/00; B29C48/03; B29C48/09; B29C48/25; B29C48/30; B29C48/32; B29C48/34; B29C48/36; B29C48/50; B29C48/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1951233A
Cited
US2519375A
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US2708772A
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US2814071A
Cited
US2947124A
Cited
US3090994A
Cited
US3294882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |