Patent US2650900A successfully refreshed from Google Patents.
US2650900A
Expired / Lapsed
US
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Method of producing metal mesh screens
Assignee: EMI Ltd
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Filing: 1947-11-26
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Granted: 1953-09-01
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Expires: 1967-11-26
Abstract
No abstract record available.
Inventors
- 👤 Holman Herbert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:04
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/02; H01J9/14; B; B29; B29D; B29D28/00; C; C25; C25D; C25D1/00; C25D1/08; H01J19/00; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0019; H01J2893/0022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A METHOD OF PRODUCING A METAL MESH SCREEN WITH THE AID OF A BODY OF THERMOPLASTIC MATERIAL HAVING THE PROPERTY OF ELASTIC MEMORY AT TEMPERATURES BELOW A LIMITING ELASTIC TEMPERATURE, SAID METHOD COMPRISING THE STEPS OF HEATING SAID BODY TO SOFTEN IT AT A TEMPERATURE BELOW ITS LIMITING ELASTIC TEMPERATURE, PRESSING A MESH-SHAPED IMPRESSION INTO THE SURFACE OF THE SOFTENED BODY TO DEVELOP INTERNAL STRESSES IN SAID BODY TENDING TO EFFACE SAID IMPRESSION, DEPOSITING METAL IN THE IMPRESSION TO FORM THE MESH, AND HEATING SAID BODY TO RELEASE SAID STRESSES AND CAUSE SAID IMPRESSION TO BE EFFACED, WHEREBY THE METAL MESH IS DISPLACED FROM THE BODY.
Claim 2
Independent Claim
106 words
A METHOD OF PRODUCING A METAL MESH SCREEN WITH THE AID OF A BODY OF THERMOPLASTIC MATERIAL HAVING THE PROPERTY OF ELASTIC MEMORY AT TEMPERATURES BELOW A LIMITING ELASTIC TEMPERATURE, SAID METHOD COMPRISING THE STEPS OF HEATING SAID BODY TO SOFTEN IT AT A TEMPERATURE BELOW ITS LIMITING ELASTIC TEMPERATURE, PRESSING A MESH-SHAPED IMPRESSION INTO THE SURFACE OF THE SOFTENED BODY TO DEVELOP INTERNAL STRESSES IN SAID BODY TENDING TO EFFACE SAID IMPRESSION, DEPOSITING METAL IN THE IMPRESSION TO FORM THE MESH, AND HEATING SAID BODY TO RELEASE SAID STRESSES AND CAUSE SAID IMPRESSION TO BE EFFACED, WHEREBY THE METAL MESH IS DISPLACED FROM THE BODY.
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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) | 1956-08-31 | 1957-03-02 | 1957-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-31 | 1961-03-02 | 1961-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-31 | 1965-03-02 | 1965-09-01 | $7700.00 | Window Closed / Lapsed |