Patent US3022538A successfully refreshed from Google Patents.
US3022538A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for manufacturing mineral wool
Assignee: United States Gypsum Co
•
Filing: 1957-09-03
•
Granted: 1962-02-27
•
Expires: 1977-09-03
Abstract
No abstract record available.
Inventors
- 👤 Carl B Setterberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:29
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/05; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/14; C03C25/146; Y; Y02; Y02P; Y02P40/00; Y02P40/50; Y02P40/57
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
IN APPARATUS FOR THE MANUFACTURE OF MINERAL WOOL FROM MOLTEN MINERAL MATERIAL WHEREIN A STREAM OF ATTENUATED MATERIAL IS PROJECTED FORWARDLY FROM FIBERIZING MEANS TOWARD A COLLECTING CHAMBER, AND A PORTION OF SAID STREAM PASSES THROUGH AN OPENING IN A PORTAL WALL INTO THE COLLECTING CHAMBER AND ANOTHER PORTION OF SAID STREAM IMPINGES AGAINST SAID WALL ADJACENT SAID OPENING, THE IMPROVEMENT COMPRISING A PORTAL WALL FORMED WITH PORTIONS OF SAID WALL ADJACENT SAID OPENING INCLINED FORWARDLY
Claim 2
Dependent Claim
76 words
IN APPARATUS FOR THE MANUFACTURE OF MINERAL WOOL FROM MOLTEN MINERAL MATERIAL WHEREIN A STREAM OF ATTENUATED MATERIAL IS PROJECTED FORWARDLY FROM FIBERIZING MEANS TOWARD A COLLECTING CHAMBER, AND A PORTION OF SAID STREAM PASSES THROUGH AN OPENING IN A PORTAL WALL INTO THE COLLECTING CHAMBER AND ANOTHER PORTION OF SAID STREAM IMPINGES AGAINST SAID WALL ADJACENT SAID OPENING, THE IMPROVEMENT COMPRISING A PORTAL WALL FORMED WITH PORTIONS OF SAID WALL ADJACENT SAID OPENING INCLINED FORWARDLY
References Cited (Backward Citations)
US65339A
Cited
US1994610A
Cited
US2255227A
Cited
US2328714A
Cited
US2403740A
Cited
US2431205A
Cited
US2646593A
Cited
US2587710A
Cited
US2707847A
Cited
US2839782A
Cited
US2774103A
Cited
US2869175A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |