Patent US3238029A successfully refreshed from Google Patents.
US3238029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinner for producing mineral fibers
Assignee: Insulwool Products Pty Ltd
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Filing: 1963-05-22
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Granted: 1966-03-01
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Expires: 1983-05-22
Abstract
No abstract record available.
Inventors
- 👤 Cullen Frank Sansom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:07
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/05; C03B37/055
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
56 words
IN A SPINNER FOR USE IN A MINERAL FIBER MELT SPINNING PROCESS, A SHAFT, A METAL DISC MOUNTED ON THE SHAFT, AND A PLURALITY OF OUTSTANDING CLOSELY PACKED SUBSTANTIALLY PARALLELMETAL RODS ATTACHED AT ONE END TO ONE SIDE OF THE METAL DISC TO FORM THE MAJOR PORTION OF A HEAT RESISTANT SURFACE LAYER ON SAID DISC.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |