US3097837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inner cover for annealing furnaces
Assignee: PITTSBURGH ANNEALING BOX CO
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Filing: 1961-02-03
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Granted: 1963-07-16
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Expires: 1981-02-03
Abstract
No abstract record available.
Inventors
- 👤 Morris L Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:59
CPC Classifications
C; C21; C21D; C21D9/00; C21D9/0006; C21D9/0025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN INNER ANNEALING COVER FOR AN ANNEALING FURNACE, COMPRISING, IN COMBINATION, SUBSTANTIALLY VERTICAL ENCLOSURE WALL FORMING A COMPLETE PERIMETER AND ENCLOSING A SPACE, A TOP SECURED TO THE UPPER END OF SAID WALL TO CLOSE THE UPPER END OF SAID SPACE, S SUBSTANTIALLY PERIMETRAL LIFTING MEMBER IN SURROUNDING AND LATERALLY SPACED ADJACENTLY TO SAID WALL, AND A PLURALITY OF PERIMETRALLY SPACED SUPPORTS SECURED TO SAID WALL ADJACENT SAID TOP AND HAVING THEIR RESPECTIVE LOWER PARTS SECURED TO SAID LIFTING MEMBER.
Claim 2
Dependent Claim
80 words
AN INNER ANNEALING COVER FOR AN ANNEALING FURNACE, COMPRISING, IN COMBINATION, SUBSTANTIALLY VERTICAL ENCLOSURE WALL FORMING A COMPLETE PERIMETER AND ENCLOSING A SPACE, A TOP SECURED TO THE UPPER END OF SAID WALL TO CLOSE THE UPPER END OF SAID SPACE, S SUBSTANTIALLY PERIMETRAL LIFTING MEMBER IN SURROUNDING AND LATERALLY SPACED ADJACENTLY TO SAID WALL, AND A PLURALITY OF PERIMETRALLY SPACED SUPPORTS SECURED TO SAID WALL ADJACENT SAID TOP AND HAVING THEIR RESPECTIVE LOWER PARTS SECURED TO SAID LIFTING MEMBER.
References Cited (Backward Citations)
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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) | 1966-07-15 | 1967-01-14 | 1967-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-15 | 1971-01-14 | 1971-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-15 | 1975-01-14 | 1975-07-16 | $7700.00 | Window Closed / Lapsed |