US2634964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyer furnace
Assignee: Cold Metal Products Co
•
Filing: 1951-01-09
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Granted: 1953-04-14
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Expires: 1971-01-09
Abstract
No abstract record available.
Inventors
- 👤 David P Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:47
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/74
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A CONVEYER FURNACE COMPRISING A HEATING CHAMBER HAVING CONVEYER ROLLERS AND BEARINGS LOCATED ENTIRELY WITHIN THE CHAMBER FOR ROTATABLY SUPPORTING SAID CONVEYER ROLLERS, SAID BEARINGS BEING MADE OF GRAPHITE, AND MEANS CONNECTED TO A SOURCE OF DISSOCIATED AMMONIA FOR INTRODUCING DISSOCIATED AMMONIA INTO SAID CHAMBER FOR PROTECTING THE GRAPHITE BEARINGS.
Claim 2
Dependent Claim
50 words
A CONVEYER FURNACE COMPRISING A HEATING CHAMBER HAVING CONVEYER ROLLERS AND BEARINGS LOCATED ENTIRELY WITHIN THE CHAMBER FOR ROTATABLY SUPPORTING SAID CONVEYER ROLLERS, SAID BEARINGS BEING MADE OF GRAPHITE, AND MEANS CONNECTED TO A SOURCE OF DISSOCIATED AMMONIA FOR INTRODUCING DISSOCIATED AMMONIA INTO SAID CHAMBER FOR PROTECTING THE GRAPHITE BEARINGS.
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) | 1956-04-13 | 1956-10-13 | 1957-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-13 | 1960-10-13 | 1961-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-13 | 1964-10-13 | 1965-04-14 | $7700.00 | Window Closed / Lapsed |