US3093104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Furnace
Assignee: Individual
•
Filing: 1958-06-27
•
Granted: 1963-06-11
•
Expires: 1978-06-27
Abstract
No abstract record available.
Inventors
- 👤 Bukata Stephen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:44
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74; B; B23; B23K; B23K1/00; B23K1/0008; B23K1/0014; B23K1/008; F; F27; F27B; F27B5/00; F27B5/04; B23K2101/00; B23K2101/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A FURNACE COMPRISING TOP AND BOTTOM SECTIONS, A PAIR OF IMPERVIOUS ENVELOPE SHEETS MOUNTED INTERMEDIATE SAID TOP AND BOTTOM SECTIONS, EACH OF SAID SHEETS COOPERATING WITH EACH OF SAID SECTIONS TO FORM TOP AND BOTTOM HEATING CHAMBERS, MEANS IN EACH OF SAID HEATING CHAMBERS FOR UNIFORMLY HEATING THE SPACE BETWEEN SAID SHEETS, THE PERIPHERAL PORTIONS OF SAID SHEETS PROJECTING APPRECIABLE BEYOND THE SIDES OF SAID TOP AND BOTTOM SECTIONS, A RIGID CLOSURE MEMBER INTERMEDIATE SAID PERIPHERAL PORTIONS OF SAID SHEETS, A CONDUIT EXTENDING THROUGH SAID RIGID CLOSURE MEMBER, SAID CONDUIT COMMUNICATING WITH THE SPACE BETWEEN SAID SHEETS, SEAL MEANS BETWEEN
Claim 2
Dependent Claim
101 words
IN A FURNACE COMPRISING TOP AND BOTTOM SECTIONS, A PAIR OF IMPERVIOUS ENVELOPE SHEETS MOUNTED INTERMEDIATE SAID TOP AND BOTTOM SECTIONS, EACH OF SAID SHEETS COOPERATING WITH EACH OF SAID SECTIONS TO FORM TOP AND BOTTOM HEATING CHAMBERS, MEANS IN EACH OF SAID HEATING CHAMBERS FOR UNIFORMLY HEATING THE SPACE BETWEEN SAID SHEETS, THE PERIPHERAL PORTIONS OF SAID SHEETS PROJECTING APPRECIABLE BEYOND THE SIDES OF SAID TOP AND BOTTOM SECTIONS, A RIGID CLOSURE MEMBER INTERMEDIATE SAID PERIPHERAL PORTIONS OF SAID SHEETS, A CONDUIT EXTENDING THROUGH SAID RIGID CLOSURE MEMBER, SAID CONDUIT COMMUNICATING WITH THE SPACE BETWEEN SAID SHEETS, SEAL MEANS BETWEEN
References Cited (Backward Citations)
US942513A
Cited
US1137293A
Cited
US1438936A
Cited
US2016914A
Cited
US2128305A
Cited
US2163566A
Cited
US2700632A
Cited
US2678958A
Cited
US2745172A
Cited
US2803449A
Cited
US2845698A
Cited
US2853408A
Cited
US2796510A
Cited
FR1162692A
Cited
US2926761A
Cited
US2979005A
Cited
US2912476A
Cited
US2984732A
Cited
US2956099A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |