Patent US1959615A successfully refreshed from Google Patents.
Patent US6231518B1 successfully refreshed from Google Patents.
US2837772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating of plastic material
Assignee: Siemens Edison Swan Ltd
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Filing: 1954-08-13
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Granted: 1958-06-10
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Expires: 1974-08-13
Abstract
No abstract record available.
Inventors
- 👤 Deakin Stanley Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:39
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/18; B; B05; B05D; B05D7/00; B05D7/02; C23C4/04; C23C4/06; C23C4/08; B05D1/00; B05D1/02; B05D1/08; B05D1/10; Y; Y10; Y10S; Y10S264/00; Y10S264/72
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A PROCESS OF COATING POLYTETRAFLUOROETHYLENE WITH A METAL CONSISTING IN INITIALLY COLD COMPRESSING THE POLYTETRAFLUOROETHYLENE IN GRANULAR FORM INTO A SHAPE, SURFACING SAID SHAPE WITH A METALLIC COATING SO AS TO CAUSE THE METAL TO FLOW INTO THE SPACES BETWEEN THE POLYTETRAFLUOROETHYLENE GRANULES, FURTHER COLD COMPRESSING THE COATED POLYTETRAFLUOROETHYLENE SO AS TO MOULD IT MORE CLOSELY TO A REQUIRED SHAPE, THUS INCREASING THE BONDING ACTION BETWEEN THE POLYTETRAFLUOROETHYLENE AND THE METAL AND FINALLY HEAT TREATING SAID COATED POLYTETRAFLUOROETHYLENE TO A TEMPERATURE BETWEEN 320 AND 400*C. TO EFFECT ITS SETTING.
Claim 2
Dependent Claim
89 words
A PROCESS OF COATING POLYTETRAFLUOROETHYLENE WITH A METAL CONSISTING IN INITIALLY COLD COMPRESSING THE POLYTETRAFLUOROETHYLENE IN GRANULAR FORM INTO A SHAPE, SURFACING SAID SHAPE WITH A METALLIC COATING SO AS TO CAUSE THE METAL TO FLOW INTO THE SPACES BETWEEN THE POLYTETRAFLUOROETHYLENE GRANULES, FURTHER COLD COMPRESSING THE COATED POLYTETRAFLUOROETHYLENE SO AS TO MOULD IT MORE CLOSELY TO A REQUIRED SHAPE, THUS INCREASING THE BONDING ACTION BETWEEN THE POLYTETRAFLUOROETHYLENE AND THE METAL AND FINALLY HEAT TREATING SAID COATED POLYTETRAFLUOROETHYLENE TO A TEMPERATURE BETWEEN 320 AND 400*C. TO EFFECT ITS SETTING.
References Cited (Backward Citations)
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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) | 1961-06-09 | 1961-12-09 | 1962-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-09 | 1965-12-09 | 1966-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-09 | 1969-12-09 | 1970-06-10 | $7700.00 | Window Closed / Lapsed |