Patent US3686022A successfully refreshed from Google Patents.
US3686022A
Expired / Lapsed
US
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Production of films by vapor deposition and irradiation
Assignee: National Research Development Corp UK
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Filing: 1969-12-29
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Granted: 1972-08-22
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Expires: 1989-12-29
Abstract
Abstract DEPOSITION WITH RADIATION OF SUFFICIENT ENERGY TO INDUCE CROSS-LINKING IN THE POLYMER. A PROCESS FOR THE DEPOSITION OF A THIN POLYMER FILM ON A COOLED SUBSTRATE WHICH COMPRISES HEATING A POLYMER IN VACUO IN THE PRESENCE OF THE SUBSTRATE SO AS TO DEPOSITE POLYMERIC MATERIAL THEREON AND SIMULTANEOUSLY IRRADIATING THE POLYMERIC MATERIAL DURING THE ENTIRE PERIOD OF
Inventors
- 👤 Martin White
- 👤 Peter Purnell Luff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/60; B05D2505/00; B05D2506/00; B05D2507/00; B05D2508/00; B05D3/00; B05D3/06; B05D3/061; B05D3/065; B05D3/067; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-22 | 1976-02-21 | 1976-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-22 | 1980-02-21 | 1980-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-22 | 1984-02-21 | 1984-08-22 | $7700.00 | Window Closed / Lapsed |