Patent US2978389A successfully refreshed from Google Patents.
US2978389A
Expired / Lapsed
US
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Method of tensioning thin meshes of metal
Assignee: US Philips Corp
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Filing: 1959-02-09
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Granted: 1961-04-04
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Expires: 1979-02-09
Abstract
No abstract record available.
Inventors
- 👤 Turnbull Andrew Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:00
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/02; H01J29/025; B; B21; B21F; B21F33/00; B21F33/02; C; C25; C25D; C25D1/00; C25D1/08; H01B; H01B1/00; H01B1/02; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A METHOD OF MANUFACTURING A METALLIC SCREEN STRUCTURE COMPRISING A TAUT METALLIC SCREEN MEMBER AND A RIGID FRAME MEMBER HAVING AN OPENING, SAID SCREEN MEMBER BEING STRETCHED TAUT OVER SAID OPENING AND SECURED AT POSITIONS AROUND SAID OPENING TO SAID FRAME MEMBER, COMPRISING THE STEPS, PLACING SAID SCREEN IN A SLACK CONDITION OVER SAID OPENING, SECURING SAID SCREEN TO SAID FRAME MEMBER AT POINTS POSITIONED AROUND SAID OPENING, ELECTROPLATING SAID THUS MOUNTED SCREEN IN AN ELECTRO-DEPOSITION BATH WITH AN AMOUNT OF A METAL UNDER A STATE OF TENSILE STRESS SUFFICIENT TO CAUSE SAID SCREEN TO BE STRETCHED TAUT OVER SAID OPENING.
Claim 2
Independent Claim
101 words
A METHOD OF MANUFACTURING A METALLIC SCREEN STRUCTURE COMPRISING A TAUT METALLIC SCREEN MEMBER AND A RIGID FRAME MEMBER HAVING AN OPENING, SAID SCREEN MEMBER BEING STRETCHED TAUT OVER SAID OPENING AND SECURED AT POSITIONS AROUND SAID OPENING TO SAID FRAME MEMBER, COMPRISING THE STEPS, PLACING SAID SCREEN IN A SLACK CONDITION OVER SAID OPENING, SECURING SAID SCREEN TO SAID FRAME MEMBER AT POINTS POSITIONED AROUND SAID OPENING, ELECTROPLATING SAID THUS MOUNTED SCREEN IN AN ELECTRO-DEPOSITION BATH WITH AN AMOUNT OF A METAL UNDER A STATE OF TENSILE STRESS SUFFICIENT TO CAUSE SAID SCREEN TO BE STRETCHED TAUT OVER SAID OPENING.
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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) | 1964-04-03 | 1964-10-03 | 1965-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-03 | 1968-10-03 | 1969-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-03 | 1972-10-03 | 1973-04-04 | $7700.00 | Window Closed / Lapsed |