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US3064954A
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Assignee: United States Stoneware Co
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Filing: 1958-11-13
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Granted: 1962-11-20
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Expires: 1978-11-13
Abstract
No abstract record available.
Inventors
- 👤 John S Eckert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:08
CPC Classifications
B; B01; B01D; B01D47/00; F; F22; F22B; F22B1/00; F22B1/02; F22B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US548174A
Cited
US665995A
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US1141266A
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US2143015A
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US2511118A
Cited
FR951153A
Cited
US2860860A
Cited
US2803528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |