Patent US3941638A successfully refreshed from Google Patents.
US3941638A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufactured relief-sculptured sound grills (used for covering the sound producing side and/or front of most manufactured sound speaker enclosures) and the manufacturing process for the said grills
Assignee: Individual
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Filing: 1974-09-18
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Granted: 1976-03-02
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Expires: 1994-09-18
Abstract
Abstract A method for constructing a relief sculptured sound grill comprising the steps of soaking a strip of flexible material in a starch solution and thereafter securing the flexible material between a male and female mold member so that the mold members form the desired relief sculpture on the flexible material. The strip of material is then dried and paint is applied to the relief sculpture and dried thereby permanently forming the relief sculpture on the strip of material. A frame is then secured around the periphery of the strip of material and the mold members are removed so that a hardener may be applied to the entire strip of material. The strip of material with the attached frame is then dried thus completing the relief sculptured sound grill of the present invention.
Inventors
- 👤 Reginald Patrick Horky
- 👤 Scott Octave Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:42
CPC Classifications
H; H04; H04R; H04R1/00; H04R1/02; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1052; Y10T156/108
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
125 words
A method of constructing a relief sculptured sound grill comprising: the first step of soaking a strip of flexible material in a starch solution, the second step of placing said strip of flexible material between a male mold member and a female mold member, said male mold member and female mold member cooperating to form a relief sculpture on said strip of flexible material, the third step of drying said strip of flexible material, the fourth step of applying a hardener to said relief sculpture, the fifth step of drying said strip of flexible material, the sixth step of removing said mold members, the seventh step of applying a hardener to said strip of flexible material, and the last step of drying said flexible material.
Claim 2
Independent Claim
125 words
A method of constructing a relief sculptured sound grill comprising: the first step of soaking a strip of flexible material in a starch solution, the second step of placing said strip of flexible material between a male mold member and a female mold member, said male mold member and female mold member cooperating to form a relief sculpture on said strip of flexible material, the third step of drying said strip of flexible material, the fourth step of applying a hardener to said relief sculpture, the fifth step of drying said strip of flexible material, the sixth step of removing said mold members, the seventh step of applying a hardener to said strip of flexible material, and the last step of drying said flexible material.
Claim 3
Dependent Claim
30 words
The method as defined in claim 1 and further comprising the step of attaching a frame around the outer periphery of said strip of flexible material after said second step.
Claim 4
Dependent Claim
35 words
The method as defined in claim 2 wherein said frame comprises two cooperating frame members and said step of attaching the frame further comprises glueing the strip of flexible material between the cooperating frame members.
Claim 5
Dependent Claim
25 words
The method as defined in claim 3 and including the further step of removing excess material from around the outer periphery of the frame members.
Claim 6
Dependent Claim
35 words
The method as defined in claim 2 wherein said frame comprises two cooperating frame members and said step of attaching a frame further comprises stapling the strip of flexible material between the cooperating frame members.
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) | 1979-03-02 | 1979-09-01 | 1980-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-02 | 1983-09-01 | 1984-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-02 | 1987-09-01 | 1988-03-02 | $7700.00 | Window Closed / Lapsed |