US2777759A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air processing apparatus
Assignee: Individual
•
Filing: 1953-02-13
•
Granted: 1957-01-15
•
Expires: 1973-02-13
Abstract
No abstract record available.
Inventors
- 👤 Sokolik Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:30
CPC Classifications
F; F24; F24D; F24D5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
AIR CONDITIONING APPARATUS COMPRISING AN ELONGATED CYLINDRICAL HOUSING, SAID HOUSING INCLUDING A PAIR OF SUBSTANTIALLY SEMI-CYLINDRICAL HOUSING SECTIONS ADAPTED TO BE SEPARATED FOR PROVIDING ACCESS TO THE INTERIOR OF THE HOUSING, SAID HOUSING HAVING AIR INLET, AND OUTLET OPENINGS AT OPPOSITE ENDS THEREOF, AIR BLOWER MEANS ADJACENT ONE END OF THE HOUSING FOR CAUSING AIR TO PASS LONGITUDINALLY THERETHROUGH, A PLURALITY OF SEPARATE CYLINDRICAL AIR PURIFTYING CARTRIDGES MOUNTED WITHIN THE CYLINDRICAL HOUSING IN LONGITUDINALLY SPACED RELATION AXIALLY OF THE HOUSING AND READILY REMOVABLE THEREFROM WHEN THE PAIR OF HOUSING SECTIONS ARE SEPARED, EACH CARTRIDGE COMPRISING A PAIR OF CONCENTRICALLY SPACED INNER AND OUTER CYLINDRICAL FORAMINOUS SLEEVES, THE OUTER SLEEVE OF EACH CARTRIDGE BEING CONCENTRICALLY SPACED FROM THE SIDE WALL OF THE HOUSEING, AN END WALL CLOSING CORRESPONDING ENDS OF THE INNER AND OUTER SLEEVES OF EACH CARTRIDGE AND PREVENTING THE PASSAGE OF AIR INTO THE SLEEVES AXIALLY IN ONE DIRECTION, AN ANNULAR WALL ADJACENT THE OTHER CORRESPONDING ENDS OF
Claim 2
Dependent Claim
159 words
AIR CONDITIONING APPARATUS COMPRISING AN ELONGATED CYLINDRICAL HOUSING, SAID HOUSING INCLUDING A PAIR OF SUBSTANTIALLY SEMI-CYLINDRICAL HOUSING SECTIONS ADAPTED TO BE SEPARATED FOR PROVIDING ACCESS TO THE INTERIOR OF THE HOUSING, SAID HOUSING HAVING AIR INLET, AND OUTLET OPENINGS AT OPPOSITE ENDS THEREOF, AIR BLOWER MEANS ADJACENT ONE END OF THE HOUSING FOR CAUSING AIR TO PASS LONGITUDINALLY THERETHROUGH, A PLURALITY OF SEPARATE CYLINDRICAL AIR PURIFTYING CARTRIDGES MOUNTED WITHIN THE CYLINDRICAL HOUSING IN LONGITUDINALLY SPACED RELATION AXIALLY OF THE HOUSING AND READILY REMOVABLE THEREFROM WHEN THE PAIR OF HOUSING SECTIONS ARE SEPARED, EACH CARTRIDGE COMPRISING A PAIR OF CONCENTRICALLY SPACED INNER AND OUTER CYLINDRICAL FORAMINOUS SLEEVES, THE OUTER SLEEVE OF EACH CARTRIDGE BEING CONCENTRICALLY SPACED FROM THE SIDE WALL OF THE HOUSEING, AN END WALL CLOSING CORRESPONDING ENDS OF THE INNER AND OUTER SLEEVES OF EACH CARTRIDGE AND PREVENTING THE PASSAGE OF AIR INTO THE SLEEVES AXIALLY IN ONE DIRECTION, AN ANNULAR WALL ADJACENT THE OTHER CORRESPONDING ENDS OF
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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) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |