US3619987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Devaporizing systems
Assignee: Individual
•
Filing: 1969-11-10
•
Granted: 1971-11-16
•
Expires: 1989-11-10
Abstract
Abstract AIR DEHUMIDIFER SYSTEMS FOR CONTAINERIZED CARGO COMPRISING A ROTATING WHEEL CONTAINING HYGROSCROPIC LINED PASSAGEWAYS AND SPECIAL INTERNAL DUCKWORK, HEATING AND COOLING APPARATUS ARRANGED TO DRY AIR FROM THE CONTAINER AND SIMILTANEOUSLY REACTIVATE THE WHEEL PASSAGEWAYS.
Inventors
- 👤 Oliver D Colvin
- 👤 Robert A Taylor
- 👤 Samuel C Kelly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24F3/1423; F26; F26B; F26B21/00; F26B21/30; F26B21/33; F26B21/331; F24F2003/1458; F24F2003/1464; F24F2203/00; F24F2203/10; F24F2203/1004; F24F2203/1012; F24F2203/1032; F24F2203/1048; F24F2203/1056; F24F2203/106; F24F2203/1068; F24F2203/1084; F24F2203/1088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |