US2801906A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Support for wire filament
Assignee: Oxy Catalyst Inc
•
Filing: 1954-12-09
•
Granted: 1957-08-06
•
Expires: 1974-12-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred I Bratton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:44
CPC Classifications
B; B01; B01J; B01J35/00; B01J35/50; B01J35/58
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
CATALYTIC UNIT ADAPTED TO BE STACKED WITH AT LEAST ONE SIMILAR UNIT TO PROVIDE A MULTIPLE UNIT ASSEMBLY, SAID UNIT COMPRISING A GENERALLY RECTANGULAR FRAME FORMED BY PARALLEL SIDE MEMBERS AND PARALLEL END MEMBERS, SAID END MEMBERS SERVING AS SUPPORTS FOR A FILAMENT PROVIDING A SURFACE OF CATALYIC MATERIAL, SAID FILAMENT BEING WRAPPED CONTINUOUSLY AROUND SAID END MEMBERS IN CLOSELY SPACED CONVOLUTIONS TO PROVIDE A DOUBLE LAYER OF CLOSELY SPACED STRANDS OVER SUBSTANTIALLY THE ENTIRE AREA ENCLOSED BY SAID RECTANGULAR FRAME, SAID SIDE MEMBERS HAVING UPPER AND LOWER EDGES ADAPTED TO ENGAGE THE CORRESPONDING EDGES OF SIDE MEMBERS OF SIMILAR UNITS, SAID EDGES PROJECTING BEYOND THE UPPER AND LOWER SURFACES RESPECTIVELY OF SAID DOUBLE LAYER OF STRANDS SUCH THAT ON STACKING OF SAID UNITS THE FILAMENT LAYER OF ADJACENT UNITS ARE SPECED FROM ONE ANOTHER WHILE SAID SIDE MEMBERS FORM
Claim 2
Dependent Claim
140 words
CATALYTIC UNIT ADAPTED TO BE STACKED WITH AT LEAST ONE SIMILAR UNIT TO PROVIDE A MULTIPLE UNIT ASSEMBLY, SAID UNIT COMPRISING A GENERALLY RECTANGULAR FRAME FORMED BY PARALLEL SIDE MEMBERS AND PARALLEL END MEMBERS, SAID END MEMBERS SERVING AS SUPPORTS FOR A FILAMENT PROVIDING A SURFACE OF CATALYIC MATERIAL, SAID FILAMENT BEING WRAPPED CONTINUOUSLY AROUND SAID END MEMBERS IN CLOSELY SPACED CONVOLUTIONS TO PROVIDE A DOUBLE LAYER OF CLOSELY SPACED STRANDS OVER SUBSTANTIALLY THE ENTIRE AREA ENCLOSED BY SAID RECTANGULAR FRAME, SAID SIDE MEMBERS HAVING UPPER AND LOWER EDGES ADAPTED TO ENGAGE THE CORRESPONDING EDGES OF SIDE MEMBERS OF SIMILAR UNITS, SAID EDGES PROJECTING BEYOND THE UPPER AND LOWER SURFACES RESPECTIVELY OF SAID DOUBLE LAYER OF STRANDS SUCH THAT ON STACKING OF SAID UNITS THE FILAMENT LAYER OF ADJACENT UNITS ARE SPECED FROM ONE ANOTHER WHILE SAID SIDE MEMBERS FORM
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |