US3221478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas drier
Assignee: Van Products Co
•
Filing: 1961-10-02
•
Granted: 1965-12-07
•
Expires: 1981-10-02
Abstract
No abstract record available.
Inventors
- 👤 Norton Orlo Clair
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:11
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
115 words
AN AIR DRIER COMPRISING A TANK HAVING AN INLET ADJACENT THE BOTTOM, AN OUTLET ADJACENT THE TOP, AND DRAIN MEANS IN SAID TANK ADJACENT THE BOTTOM, A SCREEN LIKE BASKET IN SAID TANK, SAID BASKET HAVING A WALL WITH APETURES IN IT, SAID WALL BEING GENERALLY CONCENTRIC TO THE INSIDE SURFACE OF SAID TANK AND SPACED INWARDLY FROM SAID INSIDE SURFACE ON ALL SIDES OF SAID TANK SO AS TO DEFINE A FLOW PATH BETWEEN SAID BASKET AND SAID TANK BETWEEN SAID INLET AND SAID OUTLET, A SPONGE LIKE CONTAINER IN SAID BASKET, SAID SPONGE LIKE CONTAINER PROTRUDING THROUGH SAID APERTURES IN SAID BASKET INTO SAID FLOW PATH, AND A HYGROSCOPIC DESICCANT IN SAID CONTAINER,
Claim 2
Dependent Claim
115 words
AN AIR DRIER COMPRISING A TANK HAVING AN INLET ADJACENT THE BOTTOM, AN OUTLET ADJACENT THE TOP, AND DRAIN MEANS IN SAID TANK ADJACENT THE BOTTOM, A SCREEN LIKE BASKET IN SAID TANK, SAID BASKET HAVING A WALL WITH APETURES IN IT, SAID WALL BEING GENERALLY CONCENTRIC TO THE INSIDE SURFACE OF SAID TANK AND SPACED INWARDLY FROM SAID INSIDE SURFACE ON ALL SIDES OF SAID TANK SO AS TO DEFINE A FLOW PATH BETWEEN SAID BASKET AND SAID TANK BETWEEN SAID INLET AND SAID OUTLET, A SPONGE LIKE CONTAINER IN SAID BASKET, SAID SPONGE LIKE CONTAINER PROTRUDING THROUGH SAID APERTURES IN SAID BASKET INTO SAID FLOW PATH, AND A HYGROSCOPIC DESICCANT IN SAID CONTAINER,
References Cited (Backward Citations)
US1965461A
Cited
US2195565A
Cited
US2174186A
Cited
US2243949A
Cited
US2341893A
Cited
US2536274A
Cited
US3090490A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-06 | 1969-06-07 | 1969-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-06 | 1973-06-07 | 1973-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-06 | 1977-06-07 | 1977-12-07 | $7700.00 | Window Closed / Lapsed |