Patent US2713894A successfully refreshed from Google Patents.
US2713894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
R sage
Assignee: —
•
Filing: —
•
Granted: 1955-07-26
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Expires: 1972-07-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:21
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/02; C01B3/32; C01B3/34; C01B3/36; C01B3/363
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A BURNER COMPRISING A PLURALITY OF SIMILARLY SHAPED FLAT PLATES ARRANGED IN A STACKED ARRAY AND SPACED NOT LESS THAN ONE THIRTY-SECOND AND NOT MORE THAN ONEFOURTH INCH APART FROM ONE ANOTHER, EACH OF SAID PLATES HAVING A PLURALITY OF SIMILARLY SHAPED AND POSITIONED OPENINGS THERETHROUGH IN REGISTER WITH ONE ANOTHER DEFINING THE INNER PERIPHERIES OF SEPARATE CONDUITS EXTENDING THROUGH SAID ARRAY, MEANS DISPOSED BETWEEN EACH PLATE AND THE NEXT ADJACENT PLATE, EACH OF SAID MEANS HAVING AT LEAST ONE OPENING IN REGISTER WITH A CORRE-
Claim 2
Dependent Claim
86 words
A BURNER COMPRISING A PLURALITY OF SIMILARLY SHAPED FLAT PLATES ARRANGED IN A STACKED ARRAY AND SPACED NOT LESS THAN ONE THIRTY-SECOND AND NOT MORE THAN ONEFOURTH INCH APART FROM ONE ANOTHER, EACH OF SAID PLATES HAVING A PLURALITY OF SIMILARLY SHAPED AND POSITIONED OPENINGS THERETHROUGH IN REGISTER WITH ONE ANOTHER DEFINING THE INNER PERIPHERIES OF SEPARATE CONDUITS EXTENDING THROUGH SAID ARRAY, MEANS DISPOSED BETWEEN EACH PLATE AND THE NEXT ADJACENT PLATE, EACH OF SAID MEANS HAVING AT LEAST ONE OPENING IN REGISTER WITH A CORRE-
References Cited (Backward Citations)
US227852A
Cited
US1400024A
Cited
US2003226A
Cited
US2177379A
Cited
US2449359A
Cited
US2621117A
Cited
US2553199A
Cited
US2484123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-07-25 | 1959-01-24 | 1959-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-07-25 | 1963-01-24 | 1963-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-07-25 | 1967-01-24 | 1967-07-26 | $7700.00 | Window Closed / Lapsed |