US3019477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High output radiant heater for a glass fiber forming apparatus
Assignee: Owens Corning
•
Filing: 1958-11-14
•
Granted: 1962-02-06
•
Expires: 1978-11-14
Abstract
No abstract record available.
Inventors
- 👤 Kleist Dale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:00
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/048
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN A ROTARY FIBER FORMING APPARATUS WHICH COMPRISES A GENERALLY CYLINDRICAL CENTRIFUGE HAVING A PLURALITY OF VERTICALLY SPACED, CIRCUMFERENTIAL ROWS OF STREAM FORMING ORIFICES IN ITS PERIPHERY THE COMBINATION WITH SAID CENTRIFUGE OF A HIGH OUTPUT, HEATER COMPRISING AN ANNULAR REFRACTORY ELEMENT EXTENDING CIRCIMFERENTIALLY AROUND SAID CENTRIFUGE AT AS LEVEL ABOVE THE UPPERMOST ONE OF SAID ROWS OF STREAM FORMING ORIFICES OF THE CENTRIFUGE, SAID
Claim 2
Dependent Claim
65 words
IN A ROTARY FIBER FORMING APPARATUS WHICH COMPRISES A GENERALLY CYLINDRICAL CENTRIFUGE HAVING A PLURALITY OF VERTICALLY SPACED, CIRCUMFERENTIAL ROWS OF STREAM FORMING ORIFICES IN ITS PERIPHERY THE COMBINATION WITH SAID CENTRIFUGE OF A HIGH OUTPUT, HEATER COMPRISING AN ANNULAR REFRACTORY ELEMENT EXTENDING CIRCIMFERENTIALLY AROUND SAID CENTRIFUGE AT AS LEVEL ABOVE THE UPPERMOST ONE OF SAID ROWS OF STREAM FORMING ORIFICES OF THE CENTRIFUGE, SAID
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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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |