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US3051973A
Expired / Lapsed
US
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Absorptive earth-drying apparatus
Assignee: Individual
•
Filing: 1958-06-12
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Granted: 1962-09-04
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Expires: 1978-06-12
Abstract
No abstract record available.
Inventors
- 👤 Francis G Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:11
CPC Classifications
E; E01; E01H; E01H1/00; E01H1/10; E01H1/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191016262A
Cited
US1000699A
Cited
US1278606A
Cited
US1813026A
Cited
US1991324A
Cited
GB371524A
Cited
GB415496A
Cited
US2207278A
Cited
US2874397A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |