US2923754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for manufacturing synthetic mica
Assignee: Synthetic Mica Corp
•
Filing: 1956-08-02
•
Granted: 1960-02-02
•
Expires: 1976-08-02
Abstract
No abstract record available.
Inventors
- 👤 Edgar C Worden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:46
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/02; H01B3/04; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; H05; H05B; H05B3/00; H05B3/60; Y; Y10; Y10T; Y10T117/00; Y10T117/10; Y10T117/102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A FURNACE FOR RESISTANCE MELTING A CHARGE OF POWDERED AND GRANULATED MATERIAL, COMPRISING A SHELL DEFINING A CHARGE RECEIVING CHAMBER, A PAIR OF SPACED MAIN ELECTRODES DISPOSED WITHIN SAID CHAMBER AND ADAPTED TO BE ELECTRICALLY ENERGIZED TO SUPPLY ELECTRIC ENERGY TO THE FURNACE CHARGE TO HEAT THE LATTER, AND A PAIR OF ANGULARLY RELATED SECONDARY ELECTRODES CONDUCTIVELY CONNECTED TO SAID MAIN ELECTRODES AND BEING IN MUTUAL CONDUCTING RELATIONSHIP.
Claim 2
Dependent Claim
68 words
A FURNACE FOR RESISTANCE MELTING A CHARGE OF POWDERED AND GRANULATED MATERIAL, COMPRISING A SHELL DEFINING A CHARGE RECEIVING CHAMBER, A PAIR OF SPACED MAIN ELECTRODES DISPOSED WITHIN SAID CHAMBER AND ADAPTED TO BE ELECTRICALLY ENERGIZED TO SUPPLY ELECTRIC ENERGY TO THE FURNACE CHARGE TO HEAT THE LATTER, AND A PAIR OF ANGULARLY RELATED SECONDARY ELECTRODES CONDUCTIVELY CONNECTED TO SAID MAIN ELECTRODES AND BEING IN MUTUAL CONDUCTING RELATIONSHIP.
References Cited (Backward Citations)
US1309045A
Cited
US1326083A
Cited
US775654A
Cited
US885934A
Cited
US914489A
Cited
US1418984A
Cited
US2108577A
Cited
US2490339A
Cited
US2719799A
Cited
US2711435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-01 | 1963-08-03 | 1964-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-01 | 1967-08-03 | 1968-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-01 | 1971-08-03 | 1972-02-02 | $7700.00 | Window Closed / Lapsed |