Patent US2998767A successfully refreshed from Google Patents.
US2998767A
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Assignee: Vandercook and Sons Inc
•
Filing: 1955-04-22
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Granted: 1961-09-05
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Expires: 1975-04-22
Abstract
No abstract record available.
Inventors
- 👤 Edward O Vandercook
- 👤 David D Vandercook
- 👤 Fred A Fouser
- 👤 Roozee James Burton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:06
CPC Classifications
B; B41; B41F; B41F3/00; B41F3/18; B41F3/28
Claims Analysis
Total Claims: 0
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US2143886A
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US2471852A
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US2656789A
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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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |