US3143403A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas cleaning apparatus
Assignee: Honeywell Inc
•
Filing: 1960-02-08
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Granted: 1964-08-04
•
Expires: 1980-02-08
Abstract
No abstract record available.
Inventors
- 👤 Elmer H Swensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:16
CPC Classifications
B; B03; B03C; B03C3/00; B03C3/34; B03C3/40; B03C3/45
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A ONE-PIECE PARALLEL PLATE STRUCTURE FOR AN ELECTROSTATAIC GAS CLEANER COMPRISING: A PLURALITY OF SPACED PARALLEL PLATES CONSTRUCTED OF A CONTINUOUS SHEET OF CONDUCTIVE MATERIAL AND OF A GENERALLY RECTANGULAR SHAPE, SAID PLATES FORMING A UNITARY STRUCTURE HAVING A PORTION COMMON TO EACH OF SAID PLATES AT ONE END THEREOF TO CONNECT EACH OF SAID PLATES AT SAID ONE END, SAID COMMON PORTION INCLUDING A PORTION CO-EXTENSIVE WITH SAID ONE END OF EACH OF SAID PLATES AND EXTENDING FROM ONE EDGE OF EACH OF SAID PLATES TO AN INTERMEDIATE POSITION ONLY A PORTION OF THE DISTANCE ACROSS SAID ONE END THEREOF, SAID COMMON PORTION FURTHER INCLUDING A PORTION EXTENDING BETWEEN EACH TWO ADJACENT PLATES, BENT WITH RESPECT TO SAID COEXTENSIVE PORTIONS, AND FORMED AS A NARROW STRIP EXTEND-
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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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |