US2988032A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making core plug
Assignee: Badger Plug Co
•
Filing: 1958-01-29
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Granted: 1961-06-13
•
Expires: 1978-01-29
Abstract
No abstract record available.
Inventors
- 👤 Marvin C Voissem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:21
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/185; B21; B21D; B21D51/00; B21D53/00; B21D53/60; B21D53/66; B65H2701/00; B65H2701/50; B65H2701/51; B65H2701/511; B65H2701/5114
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA481795A
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US1292202A
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US1858821A
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US1679655A
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US1839482A
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US1935367A
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US2060038A
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US2196378A
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US2269939A
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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) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |