US3479748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for and process of drying grain
Assignee: Individual
•
Filing: 1967-09-22
•
Granted: 1969-11-25
•
Expires: 1987-09-22
Abstract
No abstract record available.
Inventors
- 👤 Vernon H Sietmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 03:18
CPC Classifications
F; F26; F26B; F26B9/00; F26B9/06; F26B9/063
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US532903A
Cited
US855312A
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US884696A
Cited
US1225403A
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US2469424A
Cited
US2788263A
Cited
US2858620A
Cited
US3237315A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-11-24 | 1973-05-26 | 1973-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-11-24 | 1977-05-26 | 1977-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-11-24 | 1981-05-26 | 1981-11-25 | $7700.00 | Window Closed / Lapsed |