US3219329A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant heat drying method and apparatus
Assignee: Phillips Petroleum Co
•
Filing: 1962-04-09
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Granted: 1965-11-23
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Expires: 1982-04-09
Abstract
No abstract record available.
Inventors
- 👤 Robert R Goins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:06
CPC Classifications
F; F26; F26B; F26B3/00; F26B3/28; F26B3/30; F26B3/305; F26B11/00; F26B11/02; F26B11/04; F26B11/0495
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1415990A
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US1841625A
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US2303843A
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US2518996A
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US3013785A
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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) | 1968-11-22 | 1969-05-24 | 1969-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-22 | 1973-05-24 | 1973-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-22 | 1977-05-24 | 1977-11-23 | $7700.00 | Window Closed / Lapsed |