US2825420A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustical tile and method of manufacturing it
Assignee: Individual
•
Filing: 1954-11-10
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Granted: 1958-03-04
•
Expires: 1974-11-10
Abstract
No abstract record available.
Inventors
- 👤 Heine Henry William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:48
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B38/00; C04B38/06; C04B38/0695; C04B41/0018; C04B41/45; C04B41/50; C04B41/80; C04B41/81; C04B41/85; Y; Y10; Y10S; Y10S264/00; Y10S264/63
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
44 words
AN ACOUSTICAL TILE HAVING A POROUS CERAMIC CORE WITH A SURFACE LAYER OF GLAZED FRIT, AND SAID SURFACE LAYER HAVING OPEN PORES OR CRATERS COMMUNICATING WITH THE PORES OF THE TILE CORE, AND THE WALLS OF SAID PORES OR CRATERS REINFORCED WITH A EUTECTIC.
Claim 2
Dependent Claim
44 words
AN ACOUSTICAL TILE HAVING A POROUS CERAMIC CORE WITH A SURFACE LAYER OF GLAZED FRIT, AND SAID SURFACE LAYER HAVING OPEN PORES OR CRATERS COMMUNICATING WITH THE PORES OF THE TILE CORE, AND THE WALLS OF SAID PORES OR CRATERS REINFORCED WITH A EUTECTIC.
Claim 3
Dependent Claim
85 words
IN A METHOD FOR THE MANUFACTURE OF ACOUSTICAL TILE HAVING A GLAZED FRIT SURFACE WITH OPEN CRATERS OR PORES, THE STEPS OF REINFORCING THE WALLS OF SAID CRATERS OR PORES WITH A EUTECTIC, WHICH CONSISTS IN FIRST APPLYING TO THE GLAZED FRIT SURFACE A FLUXING AGENT CAPABLE OF FORMING A EUTECTIC WITH SAID SURFACE GLAZE, AND SECONDLY, APPLYING HEAT UNTIL THE EUTECTIC IS FORMED AND SUFFICIENT THEREOF FLOWS INTO THE CRATERS OR PORES FOR WALL REINFORCEMENT BUT RETAINING THE DESIRED ACOUSTICAL PROPERTIES OF SAID TILE.
Claim 4
Dependent Claim
85 words
IN A METHOD FOR THE MANUFACTURE OF ACOUSTICAL TILE HAVING A GLAZED FRIT SURFACE WITH OPEN CRATERS OR PORES, THE STEPS OF REINFORCING THE WALLS OF SAID CRATERS OR PORES WITH A EUTECTIC, WHICH CONSISTS IN FIRST APPLYING TO THE GLAZED FRIT SURFACE A FLUXING AGENT CAPABLE OF FORMING A EUTECTIC WITH SAID SURFACE GLAZE, AND SECONDLY, APPLYING HEAT UNTIL THE EUTECTIC IS FORMED AND SUFFICIENT THEREOF FLOWS INTO THE CRATERS OR PORES FOR WALL REINFORCEMENT BUT RETAINING THE DESIRED ACOUSTICAL PROPERTIES OF SAID TILE.
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) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |